Improve startup dictionary progress and fix overlay/plugin input handlin

- show a dedicated startup OSD "building" phase for character dictionary sync
- forward bare `Tab` from visible overlay to mpv so AniSkip works while focused
- fix Windows plugin env override resolution for `SUBMINER_BINARY_PATH`

README.md

@@ -29,7 +29,7 @@ SubMiner is an Electron overlay that sits on top of mpv. It turns your video pla
 - **One-key mining** — Creates Anki cards with sentence, audio, screenshot, and translation
 - **Instant auto-enrichment** — Optional local AnkiConnect proxy enriches new Yomitan cards immediately
 - **Reading annotations** — Combines N+1 targeting, frequency-dictionary highlighting, and JLPT underlining while you read
-- **Hover-aware playback** — By default, hovering subtitle text pauses mpv and resumes on mouse leave (`subtitleStyle.autoPauseVideoOnHover`)
+- **Hover-aware playback** — By default, hovering subtitle text pauses mpv and resumes on mouse leave
 - **Subtitle tools** — Download from Jimaku, sync with alass/ffsubsync
 - **Immersion tracking** — SQLite-powered stats on your watch time and mining activity
 - **Custom texthooker page** — Built-in custom texthooker page and websocket, no extra setup
@@ -77,8 +77,6 @@ On first launch, SubMiner:
 - can install the mpv plugin to the default mpv scripts location for you
 - links directly to Yomitan settings so you can install dictionaries before finishing setup
 
-Existing installs that already have a valid config plus at least one Yomitan dictionary are auto-detected as complete and will not be re-prompted.
-
 ### 3. Finish setup
 
 - click `Install mpv plugin` if you want the default plugin auto-start flow
@@ -114,7 +112,7 @@ For full guides on configuration, Anki, Jellyfin, and more, see [docs.subminer.m
 
 ## Acknowledgments
 
-Built on the shoulders of [GameSentenceMiner](https://github.com/bpwhelan/GameSentenceMiner), [Renji's Texthooker Page](https://github.com/Renji-XD/texthooker-ui), [mpvacious](https://github.com/Ajatt-Tools/mpvacious), [Anacreon-Script](https://github.com/friedrich-de/Anacreon-Script), and [Bee's Character Dictionary](https://github.com/bee-san/Japanese_Character_Name_Dictionary). Subtitles powered by [Jimaku.cc](https://jimaku.cc). Dictionary lookups via [Yomitan](https://github.com/yomidevs/yomitan).
+Built on the shoulders of [GameSentenceMiner](https://github.com/bpwhelan/GameSentenceMiner), [Renji's Texthooker Page](https://github.com/Renji-XD/texthooker-ui), [Anacreon-Script](https://github.com/friedrich-de/Anacreon-Script), and [Bee's Character Dictionary](https://github.com/bee-san/Japanese_Character_Name_Dictionary). Subtitles powered by [Jimaku.cc](https://jimaku.cc). Dictionary lookups via [Yomitan](https://github.com/yomidevs/yomitan), and JLPT tags from [yomitan-jlpt-vocab](https://github.com/stephenmk/yomitan-jlpt-vocab).
 
 ## License
 

backlog/tasks/task-145 - Show-character-dictionary-build-progress-on-startup-OSD-before-import.md

@@ -0,0 +1,43 @@
+---
+id: TASK-145
+title: Show character dictionary build progress on startup OSD before import
+status: Done
+assignee: []
+created_date: '2026-03-09 11:20'
+updated_date: '2026-03-09 11:20'
+labels:
+  - startup
+  - dictionary
+  - ux
+dependencies: []
+references:
+  - /home/sudacode/projects/japanese/SubMiner/src/main/runtime/character-dictionary-auto-sync.ts
+  - /home/sudacode/projects/japanese/SubMiner/src/main/runtime/startup-osd-sequencer.ts
+  - /home/sudacode/projects/japanese/SubMiner/src/main/runtime/character-dictionary-auto-sync.test.ts
+priority: medium
+---
+
+## Description
+
+<!-- SECTION:DESCRIPTION:BEGIN -->
+
+Surface an explicit character-dictionary build phase on startup OSD so there is visible progress between subtitle annotation loading and the later import/upload step when merged dictionary generation is still running.
+
+<!-- SECTION:DESCRIPTION:END -->
+
+## Acceptance Criteria
+
+<!-- AC:BEGIN -->
+
+- [x] #1 Auto-sync emits a dedicated in-flight status while merged dictionary generation is running.
+- [x] #2 Startup OSD sequencing treats that build phase as progress and can surface it after annotation loading clears.
+- [x] #3 Regression coverage verifies the build phase is emitted before import begins.
+<!-- AC:END -->
+
+## Implementation Notes
+
+<!-- SECTION:NOTES:BEGIN -->
+
+Added a `building` progress phase before `buildMergedDictionary(...)` and included it in the startup OSD sequencer's buffered progress set. This gives startup a visible dictionary-progress step even when snapshot checking/generation finished too early to still be relevant by the time annotation loading completes.
+
+<!-- SECTION:NOTES:END -->

backlog/tasks/task-146 - Forward-overlay-Tab-to-mpv-for-AniSkip.md

@@ -0,0 +1,66 @@
+---
+id: TASK-146
+title: Forward overlay Tab to mpv for AniSkip
+status: Done
+assignee:
+  - codex
+created_date: '2026-03-09 00:00'
+updated_date: '2026-03-09 00:00'
+labels:
+  - bug
+  - overlay
+  - aniskip
+  - linux
+dependencies: []
+---
+
+## Description
+
+<!-- SECTION:DESCRIPTION:BEGIN -->
+
+Fix visible-overlay keyboard handling so bare `Tab` is forwarded to mpv instead of being consumed by Electron focus navigation. This restores the default AniSkip `TAB` binding while the overlay has focus, especially on Linux.
+
+<!-- SECTION:DESCRIPTION:END -->
+
+## Acceptance Criteria
+
+<!-- AC:BEGIN -->
+
+- [x] #1 Visible overlay forwards bare `Tab` to mpv as `keypress TAB`.
+- [x] #2 Modal overlays keep their existing local `Tab` behavior.
+- [x] #3 Automated regression coverage exists for the input handler and overlay factory wiring.
+<!-- AC:END -->
+
+## Implementation Plan
+
+<!-- SECTION:PLAN:BEGIN -->
+
+1. Add a failing regression around visible-overlay `before-input-event` handling for bare `Tab`.
+2. Add/extend overlay factory tests so the new mpv-forward callback is wired through runtime construction.
+3. Patch overlay input handling to intercept visible-overlay `Tab` and send mpv `keypress TAB`.
+4. Run focused overlay tests, typecheck, and changelog validation.
+<!-- SECTION:PLAN:END -->
+
+## Implementation Notes
+
+<!-- SECTION:NOTES:BEGIN -->
+
+Extracted visible-overlay input handling into `src/core/services/overlay-window-input.ts` so the `Tab` forwarding decision can be unit tested without loading Electron window primitives.
+
+Visible overlay `before-input-event` now intercepts bare `Tab`, prevents the browser default, and forwards mpv `keypress TAB` through the existing mpv runtime command path. Modal overlays remain unchanged.
+
+Verification:
+
+- `bun test src/core/services/overlay-window.test.ts src/main/runtime/overlay-window-factory.test.ts src/main/runtime/overlay-window-factory-main-deps.test.ts src/main/runtime/overlay-window-runtime-handlers.test.ts`
+- `bun x tsc --noEmit`
+<!-- SECTION:NOTES:END -->
+
+## Final Summary
+
+<!-- SECTION:FINAL_SUMMARY:BEGIN -->
+
+Visible overlay focus no longer blocks the default AniSkip `Tab` binding. Bare `Tab` is now forwarded straight to mpv while the visible overlay is active, and modal overlays still retain their own normal focus behavior.
+
+Added regression coverage for both the input-routing decision and the runtime plumbing that carries the new mpv forwarder into overlay window creation.
+
+<!-- SECTION:FINAL_SUMMARY:END -->

backlog/tasks/task-148 - Fix-Windows-plugin-env-binary-override-resolution.md

@@ -0,0 +1,45 @@
+---
+id: TASK-148
+title: Fix Windows plugin env binary override resolution
+status: Done
+assignee:
+  - codex
+created_date: '2026-03-09 00:00'
+updated_date: '2026-03-09 00:00'
+labels:
+  - windows
+  - plugin
+  - regression
+dependencies: []
+priority: medium
+---
+
+## Description
+
+<!-- SECTION:DESCRIPTION:BEGIN -->
+
+Fix the mpv plugin's Windows binary override lookup so `SUBMINER_BINARY_PATH` still resolves when `SUBMINER_APPIMAGE_PATH` is unset. The current Lua resolver builds an array with a leading `nil`, which causes `ipairs` iteration to stop before the later Windows override candidate.
+
+<!-- SECTION:DESCRIPTION:END -->
+
+## Acceptance Criteria
+
+<!-- AC:BEGIN -->
+
+- [x] #1 `scripts/test-plugin-binary-windows.lua` passes the env override regression that expects `.exe` suffix resolution from `SUBMINER_BINARY_PATH`.
+- [x] #2 Existing plugin start/binary test gate stays green after the fix.
+
+<!-- AC:END -->
+
+## Final Summary
+
+<!-- SECTION:FINAL_SUMMARY:BEGIN -->
+
+Updated `plugin/subminer/binary.lua` so env override lookup checks `SUBMINER_APPIMAGE_PATH` and `SUBMINER_BINARY_PATH` sequentially instead of via a Lua array literal that truncates at the first `nil`. This restores Windows `.exe` suffix resolution for `SUBMINER_BINARY_PATH` when the AppImage env var is unset.
+
+Verification:
+
+- `lua scripts/test-plugin-binary-windows.lua`
+- `bun run test:plugin:src`
+
+<!-- SECTION:FINAL_SUMMARY:END -->

changes/task-145.md

@@ -1,4 +1,4 @@
 type: changed
-area: overlay
+area: dictionary
 
-- Show `Checking character dictionary...` during startup auto-sync and only show `Generating character dictionary...` when a fresh character-dictionary snapshot rebuild is actually needed.
+- Added a visible startup OSD step for merged character-dictionary building so long rebuilds show progress before the later import/upload phase.

changes/task-146.md

@@ -0,0 +1,4 @@
+type: fixed
+area: overlay
+
+- Fixed visible overlay keyboard handling so pressing `Tab` still reaches mpv and triggers the default AniSkip skip-intro binding while the overlay has focus.

changes/task-148.md

@@ -0,0 +1,4 @@
+type: fixed
+area: plugin
+
+- Fix Windows mpv plugin binary override lookup so `SUBMINER_BINARY_PATH` still resolves to `SubMiner.exe` when no AppImage override is set.

config.example.jsonc

@@ -2,9 +2,10 @@
  * SubMiner Example Configuration File
  *
  * This file is auto-generated from src/config/definitions.ts.
- * Copy to $XDG_CONFIG_HOME/SubMiner/config.jsonc (or ~/.config/SubMiner/config.jsonc) and edit as needed.
+ * Copy to %APPDATA%/SubMiner/config.jsonc on Windows, or $XDG_CONFIG_HOME/SubMiner/config.jsonc (or ~/.config/SubMiner/config.jsonc) on Linux/macOS.
  */
 {
+
   // ==========================================
   // Overlay Auto-Start
   // When overlay connects to mpv, automatically show overlay and hide mpv subtitles.
@@ -17,7 +18,7 @@
   // ==========================================
   "texthooker": {
     "launchAtStartup": true, // Launch texthooker server automatically when SubMiner starts. Values: true | false
-    "openBrowser": true, // Open browser setting. Values: true | false
+    "openBrowser": true // Open browser setting. Values: true | false
   }, // Configure texthooker startup launch and browser opening behavior.
 
   // ==========================================
@@ -27,7 +28,7 @@
   // ==========================================
   "websocket": {
     "enabled": "auto", // Built-in subtitle websocket server mode. Values: auto | true | false
-    "port": 6677, // Built-in subtitle websocket server port.
+    "port": 6677 // Built-in subtitle websocket server port.
   }, // Built-in WebSocket server broadcasts subtitle text to connected clients.
 
   // ==========================================
@@ -37,7 +38,7 @@
   // ==========================================
   "annotationWebsocket": {
     "enabled": true, // Annotated subtitle websocket server enabled state. Values: true | false
-    "port": 6678, // Annotated subtitle websocket server port.
+    "port": 6678 // Annotated subtitle websocket server port.
   }, // Dedicated annotated subtitle websocket for bundled texthooker and token-aware clients.
 
   // ==========================================
@@ -46,7 +47,7 @@
   // Set to debug for full runtime diagnostics.
   // ==========================================
   "logging": {
-    "level": "info", // Minimum log level for runtime logging. Values: debug | info | warn | error
+    "level": "info" // Minimum log level for runtime logging. Values: debug | info | warn | error
   }, // Controls logging verbosity.
 
   // ==========================================
@@ -60,7 +61,7 @@
     "mecab": true, // Warm up MeCab tokenizer at startup. Values: true | false
     "yomitanExtension": true, // Warm up Yomitan extension at startup. Values: true | false
     "subtitleDictionaries": true, // Warm up subtitle dictionaries at startup. Values: true | false
-    "jellyfinRemoteSession": true, // Warm up Jellyfin remote session at startup. Values: true | false
+    "jellyfinRemoteSession": true // Warm up Jellyfin remote session at startup. Values: true | false
   }, // Background warmup controls for MeCab, Yomitan, dictionaries, and Jellyfin session.
 
   // ==========================================
@@ -81,7 +82,7 @@
     "toggleSecondarySub": "CommandOrControl+Shift+V", // Toggle secondary sub setting.
     "markAudioCard": "CommandOrControl+Shift+A", // Mark audio card setting.
     "openRuntimeOptions": "CommandOrControl+Shift+O", // Open runtime options setting.
-    "openJimaku": "Ctrl+Shift+J", // Open jimaku setting.
+    "openJimaku": "Ctrl+Shift+J" // Open jimaku setting.
   }, // Overlay keyboard shortcuts. Set a shortcut to null to disable.
 
   // ==========================================
@@ -101,7 +102,7 @@
   "secondarySub": {
     "secondarySubLanguages": [], // Secondary sub languages setting.
     "autoLoadSecondarySub": false, // Auto load secondary sub setting. Values: true | false
-    "defaultMode": "hover", // Default mode setting.
+    "defaultMode": "hover" // Default mode setting.
   }, // Dual subtitle track options.
 
   // ==========================================
@@ -113,7 +114,7 @@
     "alass_path": "", // Alass path setting.
     "ffsubsync_path": "", // Ffsubsync path setting.
     "ffmpeg_path": "", // Ffmpeg path setting.
-    "replace": true, // Replace the active subtitle file when sync completes. Values: true | false
+    "replace": true // Replace the active subtitle file when sync completes. Values: true | false
   }, // Subsync engine and executable paths.
 
   // ==========================================
@@ -121,7 +122,7 @@
   // Initial vertical subtitle position from the bottom.
   // ==========================================
   "subtitlePosition": {
-    "yPercent": 10, // Y percent setting.
+    "yPercent": 10 // Y percent setting.
   }, // Initial vertical subtitle position from the bottom.
 
   // ==========================================
@@ -158,7 +159,7 @@
       "N2": "#f5a97f", // N2 setting.
       "N3": "#f9e2af", // N3 setting.
       "N4": "#a6e3a1", // N4 setting.
-      "N5": "#8aadf4", // N5 setting.
+      "N5": "#8aadf4" // N5 setting.
     }, // Jlpt colors setting.
     "frequencyDictionary": {
       "enabled": false, // Enable frequency-dictionary-based highlighting based on token rank. Values: true | false
@@ -167,7 +168,13 @@
       "mode": "single", // single: use one color for all matching tokens. banded: use color ramp by frequency band. Values: single | banded
       "matchMode": "headword", // headword: frequency lookup uses dictionary form. surface: lookup uses subtitle-visible token text. Values: headword | surface
       "singleColor": "#f5a97f", // Color used when frequencyDictionary.mode is `single`.
-      "bandedColors": ["#ed8796", "#f5a97f", "#f9e2af", "#8bd5ca", "#8aadf4"], // Five colors used for rank bands when mode is `banded` (from most common to least within topX).
+      "bandedColors": [
+        "#ed8796",
+        "#f5a97f",
+        "#f9e2af",
+        "#8bd5ca",
+        "#8aadf4"
+      ] // Five colors used for rank bands when mode is `banded` (from most common to least within topX).
     }, // Frequency dictionary setting.
     "secondary": {
       "fontFamily": "Inter, Noto Sans, Helvetica Neue, sans-serif", // Font family setting.
@@ -182,8 +189,8 @@
       "backgroundColor": "rgba(20, 22, 34, 0.78)", // Background color setting.
       "backdropFilter": "blur(6px)", // Backdrop filter setting.
       "fontWeight": "600", // Font weight setting.
-      "fontStyle": "normal", // Font style setting.
+      "fontStyle": "normal" // Font style setting.
-    }, // Secondary setting.
+    } // Secondary setting.
   }, // Primary and secondary subtitle styling.
 
   // ==========================================
@@ -194,8 +201,10 @@
     "enabled": false, // Enable shared OpenAI-compatible AI provider features. Values: true | false
     "apiKey": "", // Static API key for the shared OpenAI-compatible AI provider.
     "apiKeyCommand": "", // Shell command used to resolve the shared AI provider API key.
+    "model": "openai/gpt-4o-mini", // Model setting.
     "baseUrl": "https://openrouter.ai/api", // Base URL for the shared OpenAI-compatible AI provider.
-    "requestTimeoutMs": 15000, // Timeout in milliseconds for shared AI provider requests.
+    "systemPrompt": "You are a translation engine. Return only the translated text with no explanations.", // System prompt setting.
+    "requestTimeoutMs": 15000 // Timeout in milliseconds for shared AI provider requests.
   }, // Canonical OpenAI-compatible provider transport settings shared by Anki and YouTube subtitle fixing.
 
   // ==========================================
@@ -213,20 +222,22 @@
       "enabled": true, // Enable local AnkiConnect-compatible proxy for push-based auto-enrichment. Values: true | false
       "host": "127.0.0.1", // Bind host for local AnkiConnect proxy.
       "port": 8766, // Bind port for local AnkiConnect proxy.
-      "upstreamUrl": "http://127.0.0.1:8765", // Upstream AnkiConnect URL proxied by local AnkiConnect proxy.
+      "upstreamUrl": "http://127.0.0.1:8765" // Upstream AnkiConnect URL proxied by local AnkiConnect proxy.
     }, // Proxy setting.
-    "tags": ["SubMiner"], // Tags to add to cards mined or updated by SubMiner. Provide an empty array to disable automatic tagging.
+    "tags": [
+      "SubMiner"
+    ], // Tags to add to cards mined or updated by SubMiner. Provide an empty array to disable automatic tagging.
     "fields": {
       "audio": "ExpressionAudio", // Audio setting.
       "image": "Picture", // Image setting.
       "sentence": "Sentence", // Sentence setting.
       "miscInfo": "MiscInfo", // Misc info setting.
-      "translation": "SelectionText", // Translation setting.
+      "translation": "SelectionText" // Translation setting.
     }, // Fields setting.
     "ai": {
       "enabled": false, // Enable AI provider usage for Anki translation/enrichment flows. Values: true | false
       "model": "", // Optional model override for Anki AI translation/enrichment flows.
-      "systemPrompt": "", // Optional system prompt override for Anki AI translation/enrichment flows.
+      "systemPrompt": "" // Optional system prompt override for Anki AI translation/enrichment flows.
     }, // Ai setting.
     "media": {
       "generateAudio": true, // Generate audio setting. Values: true | false
@@ -239,7 +250,7 @@
       "animatedCrf": 35, // Animated crf setting.
       "audioPadding": 0.5, // Audio padding setting.
       "fallbackDuration": 3, // Fallback duration setting.
-      "maxMediaDuration": 30, // Max media duration setting.
+      "maxMediaDuration": 30 // Max media duration setting.
     }, // Media setting.
     "behavior": {
       "overwriteAudio": true, // Overwrite audio setting. Values: true | false
@@ -247,7 +258,7 @@
       "mediaInsertMode": "append", // Media insert mode setting.
       "highlightWord": true, // Highlight word setting. Values: true | false
       "notificationType": "osd", // Notification type setting.
-      "autoUpdateNewCards": true, // Automatically update newly added cards. Values: true | false
+      "autoUpdateNewCards": true // Automatically update newly added cards. Values: true | false
     }, // Behavior setting.
     "nPlusOne": {
       "highlightEnabled": false, // Enable fast local highlighting for words already known in Anki. Values: true | false
@@ -256,20 +267,20 @@
       "decks": [], // Decks used for N+1 known-word cache scope. Supports one or more deck names.
       "minSentenceWords": 3, // Minimum sentence word count required for N+1 targeting (default: 3).
       "nPlusOne": "#c6a0f6", // Color used for the single N+1 target token highlight.
-      "knownWord": "#a6da95", // Color used for legacy known-word highlights.
+      "knownWord": "#a6da95" // Color used for legacy known-word highlights.
     }, // N plus one setting.
     "metadata": {
-      "pattern": "[SubMiner] %f (%t)", // Pattern setting.
+      "pattern": "[SubMiner] %f (%t)" // Pattern setting.
     }, // Metadata setting.
     "isLapis": {
       "enabled": false, // Enabled setting. Values: true | false
-      "sentenceCardModel": "Japanese sentences", // Sentence card model setting.
+      "sentenceCardModel": "Japanese sentences" // Sentence card model setting.
     }, // Is lapis setting.
     "isKiku": {
       "enabled": false, // Enabled setting. Values: true | false
       "fieldGrouping": "disabled", // Kiku duplicate-card field grouping mode. Values: auto | manual | disabled
-      "deleteDuplicateInAuto": true, // Delete duplicate in auto setting. Values: true | false
+      "deleteDuplicateInAuto": true // Delete duplicate in auto setting. Values: true | false
-    }, // Is kiku setting.
+    } // Is kiku setting.
   }, // Automatic Anki updates and media generation options.
 
   // ==========================================
@@ -279,7 +290,7 @@
   "jimaku": {
     "apiBaseUrl": "https://jimaku.cc", // Api base url setting.
     "languagePreference": "ja", // Preferred language used in Jimaku search. Values: ja | en | none
-    "maxEntryResults": 10, // Maximum Jimaku search results returned.
+    "maxEntryResults": 10 // Maximum Jimaku search results returned.
   }, // Jimaku API configuration and defaults.
 
   // ==========================================
@@ -294,9 +305,12 @@
     "fixWithAi": false, // Use shared AI provider to post-process whisper-generated YouTube subtitles. Values: true | false
     "ai": {
       "model": "", // Optional model override for YouTube subtitle AI post-processing.
-      "systemPrompt": "", // Optional system prompt override for YouTube subtitle AI post-processing.
+      "systemPrompt": "" // Optional system prompt override for YouTube subtitle AI post-processing.
     }, // Ai setting.
-    "primarySubLanguages": ["ja", "jpn"], // Comma-separated primary subtitle language priority used by the launcher.
+    "primarySubLanguages": [
+      "ja",
+      "jpn"
+    ] // Comma-separated primary subtitle language priority used by the launcher.
   }, // Defaults for SubMiner YouTube subtitle generation.
 
   // ==========================================
@@ -317,9 +331,9 @@
       "collapsibleSections": {
         "description": false, // Open the Description section by default in character dictionary glossary entries. Values: true | false
         "characterInformation": false, // Open the Character Information section by default in character dictionary glossary entries. Values: true | false
-        "voicedBy": false, // Open the Voiced by section by default in character dictionary glossary entries. Values: true | false
+        "voicedBy": false // Open the Voiced by section by default in character dictionary glossary entries. Values: true | false
-      }, // Collapsible sections setting.
+      } // Collapsible sections setting.
-    }, // Character dictionary setting.
+    } // Character dictionary setting.
   }, // Anilist API credentials and update behavior.
 
   // ==========================================
@@ -343,8 +357,16 @@
     "pullPictures": false, // Enable Jellyfin poster/icon fetching for launcher menus. Values: true | false
     "iconCacheDir": "/tmp/subminer-jellyfin-icons", // Directory used by launcher for cached Jellyfin poster icons.
     "directPlayPreferred": true, // Try direct play before server-managed transcoding when possible. Values: true | false
-    "directPlayContainers": ["mkv", "mp4", "webm", "mov", "flac", "mp3", "aac"], // Container allowlist for direct play decisions.
+    "directPlayContainers": [
-    "transcodeVideoCodec": "h264", // Preferred transcode video codec when direct play is unavailable.
+      "mkv",
+      "mp4",
+      "webm",
+      "mov",
+      "flac",
+      "mp3",
+      "aac"
+    ], // Container allowlist for direct play decisions.
+    "transcodeVideoCodec": "h264" // Preferred transcode video codec when direct play is unavailable.
   }, // Optional Jellyfin integration for auth, browsing, and playback launch.
 
   // ==========================================
@@ -355,7 +377,7 @@
   "discordPresence": {
     "enabled": false, // Enable optional Discord Rich Presence updates. Values: true | false
     "updateIntervalMs": 3000, // Minimum interval between presence payload updates.
-    "debounceMs": 750, // Debounce delay used to collapse bursty presence updates.
+    "debounceMs": 750 // Debounce delay used to collapse bursty presence updates.
   }, // Optional Discord Rich Presence activity card updates for current playback/study session.
 
   // ==========================================
@@ -377,7 +399,7 @@
       "telemetryDays": 30, // Telemetry retention window in days.
       "dailyRollupsDays": 365, // Daily rollup retention window in days.
       "monthlyRollupsDays": 1825, // Monthly rollup retention window in days.
-      "vacuumIntervalDays": 7, // Minimum days between VACUUM runs.
+      "vacuumIntervalDays": 7 // Minimum days between VACUUM runs.
-    }, // Retention setting.
+    } // Retention setting.
-  }, // Enable/disable immersion tracking.
+  } // Enable/disable immersion tracking.
 }

plugin/subminer/binary.lua

@@ -107,12 +107,8 @@ function M.create(ctx)
 	end
 
 	local function find_binary_override()
-		local candidates = {
+		for _, env_name in ipairs({ "SUBMINER_APPIMAGE_PATH", "SUBMINER_BINARY_PATH" }) do
-			resolve_binary_candidate(os.getenv("SUBMINER_APPIMAGE_PATH")),
+			local path = resolve_binary_candidate(os.getenv(env_name))
-			resolve_binary_candidate(os.getenv("SUBMINER_BINARY_PATH")),
-		}
-
-		for _, path in ipairs(candidates) do
 			if path and path ~= "" then
 				return path
 			end

scripts/test-plugin-start-gate.lua

@@ -39,7 +39,13 @@ local function run_plugin_scenario(config)
 			return ""
 		end
 
-		function mp.get_property_native(_name)
+		function mp.get_property_native(name)
+			if name == "osd-dimensions" then
+				return config.osd_dimensions or {
+					w = 1280,
+					h = config.osd_height or 720,
+				}
+			end
 			return config.chapter_list or {}
 		end
 
@@ -47,6 +53,12 @@ local function run_plugin_scenario(config)
 			if name == "time-pos" then
 				return config.time_pos
 			end
+			if name == "sub-pos" then
+				return config.sub_pos or 100
+			end
+			if name == "osd-height" then
+				return config.osd_height or 720
+			end
 			return nil
 		end
 
@@ -197,6 +209,12 @@ local function run_plugin_scenario(config)
 	end
 
 	function utils.parse_json(json)
+		if json == '{"enabled":true,"amount":125}' then
+			return {
+				enabled = true,
+				amount = 125,
+			}, nil
+		end
 		if json == "__MAL_FOUND__" then
 			return {
 				categories = {
@@ -641,7 +659,7 @@ do
 		not has_property_set(recorded.property_sets, "pause", true),
 		"auto-start visible overlay should not force pause without explicit pause-until-ready option"
 	)
-	end
+end
 
 do
 	local recorded, err = run_plugin_scenario({

src/core/services/index.ts

@@ -72,6 +72,10 @@ export {
   syncOverlayWindowLayer,
   updateOverlayWindowBounds,
 } from './overlay-window';
+export {
+  handleOverlayWindowBeforeInputEvent,
+  isTabInputForMpvForwarding,
+} from './overlay-window-input';
 export { initializeOverlayRuntime } from './overlay-runtime-init';
 export { setVisibleOverlayVisible, updateVisibleOverlayVisibility } from './overlay-visibility';
 export {

src/core/services/overlay-window-input.ts

@@ -0,0 +1,61 @@
+export type OverlayWindowKind = 'visible' | 'modal';
+
+export function isTabInputForMpvForwarding(input: Electron.Input): boolean {
+  if (input.type !== 'keyDown' || input.isAutoRepeat) return false;
+  if (input.alt || input.control || input.meta || input.shift) return false;
+  return input.code === 'Tab' || input.key === 'Tab';
+}
+
+function isLookupWindowToggleInput(input: Electron.Input): boolean {
+  if (input.type !== 'keyDown') return false;
+  if (input.alt) return false;
+  if (!input.control && !input.meta) return false;
+  if (input.shift) return false;
+  const normalizedKey = typeof input.key === 'string' ? input.key.toLowerCase() : '';
+  return input.code === 'KeyY' || normalizedKey === 'y';
+}
+
+function isKeyboardModeToggleInput(input: Electron.Input): boolean {
+  if (input.type !== 'keyDown') return false;
+  if (input.alt) return false;
+  if (!input.control && !input.meta) return false;
+  if (!input.shift) return false;
+  const normalizedKey = typeof input.key === 'string' ? input.key.toLowerCase() : '';
+  return input.code === 'KeyY' || normalizedKey === 'y';
+}
+
+export function handleOverlayWindowBeforeInputEvent(options: {
+  kind: OverlayWindowKind;
+  windowVisible: boolean;
+  input: Electron.Input;
+  preventDefault: () => void;
+  sendKeyboardModeToggleRequested: () => void;
+  sendLookupWindowToggleRequested: () => void;
+  tryHandleOverlayShortcutLocalFallback: (input: Electron.Input) => boolean;
+  forwardTabToMpv: () => void;
+}): boolean {
+  if (options.kind === 'modal') return false;
+  if (!options.windowVisible) return false;
+
+  if (isKeyboardModeToggleInput(options.input)) {
+    options.preventDefault();
+    options.sendKeyboardModeToggleRequested();
+    return true;
+  }
+
+  if (isLookupWindowToggleInput(options.input)) {
+    options.preventDefault();
+    options.sendLookupWindowToggleRequested();
+    return true;
+  }
+
+  if (isTabInputForMpvForwarding(options.input)) {
+    options.preventDefault();
+    options.forwardTabToMpv();
+    return true;
+  }
+
+  if (!options.tryHandleOverlayShortcutLocalFallback(options.input)) return false;
+  options.preventDefault();
+  return true;
+}

src/core/services/overlay-window.test.ts

@@ -0,0 +1,84 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+import {
+  handleOverlayWindowBeforeInputEvent,
+  isTabInputForMpvForwarding,
+} from './overlay-window-input';
+
+test('isTabInputForMpvForwarding matches bare Tab keydown only', () => {
+  assert.equal(
+    isTabInputForMpvForwarding({
+      type: 'keyDown',
+      key: 'Tab',
+      code: 'Tab',
+    } as Electron.Input),
+    true,
+  );
+  assert.equal(
+    isTabInputForMpvForwarding({
+      type: 'keyDown',
+      key: 'Tab',
+      code: 'Tab',
+      shift: true,
+    } as Electron.Input),
+    false,
+  );
+  assert.equal(
+    isTabInputForMpvForwarding({
+      type: 'keyUp',
+      key: 'Tab',
+      code: 'Tab',
+    } as Electron.Input),
+    false,
+  );
+});
+
+test('handleOverlayWindowBeforeInputEvent forwards Tab to mpv for visible overlays', () => {
+  const calls: string[] = [];
+
+  const handled = handleOverlayWindowBeforeInputEvent({
+    kind: 'visible',
+    windowVisible: true,
+    input: {
+      type: 'keyDown',
+      key: 'Tab',
+      code: 'Tab',
+    } as Electron.Input,
+    preventDefault: () => calls.push('prevent-default'),
+    sendKeyboardModeToggleRequested: () => calls.push('keyboard-mode'),
+    sendLookupWindowToggleRequested: () => calls.push('lookup-toggle'),
+    tryHandleOverlayShortcutLocalFallback: () => {
+      calls.push('fallback');
+      return false;
+    },
+    forwardTabToMpv: () => calls.push('forward-tab'),
+  });
+
+  assert.equal(handled, true);
+  assert.deepEqual(calls, ['prevent-default', 'forward-tab']);
+});
+
+test('handleOverlayWindowBeforeInputEvent leaves modal Tab handling alone', () => {
+  const calls: string[] = [];
+
+  const handled = handleOverlayWindowBeforeInputEvent({
+    kind: 'modal',
+    windowVisible: true,
+    input: {
+      type: 'keyDown',
+      key: 'Tab',
+      code: 'Tab',
+    } as Electron.Input,
+    preventDefault: () => calls.push('prevent-default'),
+    sendKeyboardModeToggleRequested: () => calls.push('keyboard-mode'),
+    sendLookupWindowToggleRequested: () => calls.push('lookup-toggle'),
+    tryHandleOverlayShortcutLocalFallback: () => {
+      calls.push('fallback');
+      return false;
+    },
+    forwardTabToMpv: () => calls.push('forward-tab'),
+  });
+
+  assert.equal(handled, false);
+  assert.deepEqual(calls, []);
+});

src/core/services/overlay-window.ts

@@ -3,6 +3,10 @@ import * as path from 'path';
 import { WindowGeometry } from '../../types';
 import { createLogger } from '../../logger';
 import { IPC_CHANNELS } from '../../shared/ipc/contracts';
+import {
+  handleOverlayWindowBeforeInputEvent,
+  type OverlayWindowKind,
+} from './overlay-window-input';
 
 const logger = createLogger('main:overlay-window');
 const overlayWindowLayerByInstance = new WeakMap<BrowserWindow, OverlayWindowKind>();
@@ -23,26 +27,6 @@ function loadOverlayWindowLayer(window: BrowserWindow, layer: OverlayWindowKind)
     });
 }
 
-export type OverlayWindowKind = 'visible' | 'modal';
-
-function isLookupWindowToggleInput(input: Electron.Input): boolean {
-  if (input.type !== 'keyDown') return false;
-  if (input.alt) return false;
-  if (!input.control && !input.meta) return false;
-  if (input.shift) return false;
-  const normalizedKey = typeof input.key === 'string' ? input.key.toLowerCase() : '';
-  return input.code === 'KeyY' || normalizedKey === 'y';
-}
-
-function isKeyboardModeToggleInput(input: Electron.Input): boolean {
-  if (input.type !== 'keyDown') return false;
-  if (input.alt) return false;
-  if (!input.control && !input.meta) return false;
-  if (!input.shift) return false;
-  const normalizedKey = typeof input.key === 'string' ? input.key.toLowerCase() : '';
-  return input.code === 'KeyY' || normalizedKey === 'y';
-}
-
 export function updateOverlayWindowBounds(
   geometry: WindowGeometry,
   window: BrowserWindow | null,
@@ -92,6 +76,7 @@ export function createOverlayWindow(
     setOverlayDebugVisualizationEnabled: (enabled: boolean) => void;
     isOverlayVisible: (kind: OverlayWindowKind) => boolean;
     tryHandleOverlayShortcutLocalFallback: (input: Electron.Input) => boolean;
+    forwardTabToMpv: () => void;
     onWindowClosed: (kind: OverlayWindowKind) => void;
   },
 ): BrowserWindow {
@@ -142,20 +127,19 @@ export function createOverlayWindow(
   }
 
   window.webContents.on('before-input-event', (event, input) => {
-    if (kind === 'modal') return;
+    handleOverlayWindowBeforeInputEvent({
-    if (!window.isVisible()) return;
+      kind,
-    if (isKeyboardModeToggleInput(input)) {
+      windowVisible: window.isVisible(),
-      event.preventDefault();
+      input,
-      window.webContents.send(IPC_CHANNELS.event.keyboardModeToggleRequested);
+      preventDefault: () => event.preventDefault(),
-      return;
+      sendKeyboardModeToggleRequested: () =>
-    }
+        window.webContents.send(IPC_CHANNELS.event.keyboardModeToggleRequested),
-    if (isLookupWindowToggleInput(input)) {
+      sendLookupWindowToggleRequested: () =>
-      event.preventDefault();
+        window.webContents.send(IPC_CHANNELS.event.lookupWindowToggleRequested),
-      window.webContents.send(IPC_CHANNELS.event.lookupWindowToggleRequested);
+      tryHandleOverlayShortcutLocalFallback: (nextInput) =>
-      return;
+        options.tryHandleOverlayShortcutLocalFallback(nextInput),
-    }
+      forwardTabToMpv: () => options.forwardTabToMpv(),
-    if (!options.tryHandleOverlayShortcutLocalFallback(input)) return;
+    });
-    event.preventDefault();
   });
 
   window.hide();
@@ -185,3 +169,5 @@ export function syncOverlayWindowLayer(window: BrowserWindow, layer: 'visible'):
   if (overlayWindowLayerByInstance.get(window) === layer) return;
   loadOverlayWindowLayer(window, layer);
 }
+
+export type { OverlayWindowKind } from './overlay-window-input';

src/main.ts

@@ -3514,6 +3514,7 @@ const { createMainWindow: createMainWindowHandler, createModalWindow: createModa
         windowKind === 'visible' ? overlayManager.getVisibleOverlayVisible() : false,
       tryHandleOverlayShortcutLocalFallback: (input) =>
         overlayShortcutsRuntime.tryHandleOverlayShortcutLocalFallback(input),
+      forwardTabToMpv: () => sendMpvCommandRuntime(appState.mpvClient, ['keypress', 'TAB']),
       onWindowClosed: (windowKind) => {
         if (windowKind === 'visible') {
           overlayManager.setMainWindow(null);

src/main/runtime/character-dictionary-auto-sync.test.ts

@@ -331,7 +331,7 @@ test('auto sync invokes completion callback after successful sync', async () =>
 test('auto sync emits progress events for start import and completion', async () => {
   const userDataPath = makeTempDir();
   const events: Array<{
-    phase: 'checking' | 'generating' | 'syncing' | 'importing' | 'ready' | 'failed';
+    phase: 'checking' | 'generating' | 'syncing' | 'building' | 'importing' | 'ready' | 'failed';
     mediaId?: number;
     mediaTitle?: string;
     message: string;
@@ -406,6 +406,12 @@ test('auto sync emits progress events for start import and completion', async ()
       mediaTitle: 'Rascal Does Not Dream of Bunny Girl Senpai',
       message: 'Updating character dictionary for Rascal Does Not Dream of Bunny Girl Senpai...',
     },
+    {
+      phase: 'building',
+      mediaId: 101291,
+      mediaTitle: 'Rascal Does Not Dream of Bunny Girl Senpai',
+      message: 'Building character dictionary for Rascal Does Not Dream of Bunny Girl Senpai...',
+    },
     {
       phase: 'importing',
       mediaId: 101291,
@@ -425,7 +431,7 @@ test('auto sync emits progress events for start import and completion', async ()
 test('auto sync emits checking before snapshot resolves and skips generating on cache hit', async () => {
   const userDataPath = makeTempDir();
   const events: Array<{
-    phase: 'checking' | 'generating' | 'syncing' | 'importing' | 'ready' | 'failed';
+    phase: 'checking' | 'generating' | 'syncing' | 'building' | 'importing' | 'ready' | 'failed';
     mediaId?: number;
     mediaTitle?: string;
     message: string;
@@ -503,6 +509,77 @@ test('auto sync emits checking before snapshot resolves and skips generating on
   );
 });
 
+test('auto sync emits building while merged dictionary generation is in flight', async () => {
+  const userDataPath = makeTempDir();
+  const events: Array<{
+    phase: 'checking' | 'generating' | 'building' | 'syncing' | 'importing' | 'ready' | 'failed';
+    mediaId?: number;
+    mediaTitle?: string;
+    message: string;
+    changed?: boolean;
+  }> = [];
+  const buildDeferred = createDeferred<{
+    zipPath: string;
+    revision: string;
+    dictionaryTitle: string;
+    entryCount: number;
+  }>();
+  let importedRevision: string | null = null;
+
+  const runtime = createCharacterDictionaryAutoSyncRuntimeService({
+    userDataPath,
+    getConfig: () => ({
+      enabled: true,
+      maxLoaded: 3,
+      profileScope: 'all',
+    }),
+    getOrCreateCurrentSnapshot: async (_targetPath, progress) => {
+      progress?.onChecking?.({
+        mediaId: 101291,
+        mediaTitle: 'Rascal Does Not Dream of Bunny Girl Senpai',
+      });
+      return {
+        mediaId: 101291,
+        mediaTitle: 'Rascal Does Not Dream of Bunny Girl Senpai',
+        entryCount: 2560,
+        fromCache: true,
+        updatedAt: 1000,
+      };
+    },
+    buildMergedDictionary: async () => await buildDeferred.promise,
+    getYomitanDictionaryInfo: async () =>
+      importedRevision
+        ? [{ title: 'SubMiner Character Dictionary', revision: importedRevision }]
+        : [],
+    importYomitanDictionary: async () => {
+      importedRevision = 'rev-101291';
+      return true;
+    },
+    deleteYomitanDictionary: async () => true,
+    upsertYomitanDictionarySettings: async () => true,
+    now: () => 1000,
+    onSyncStatus: (event) => {
+      events.push(event);
+    },
+  });
+
+  const syncPromise = runtime.runSyncNow();
+  await Promise.resolve();
+
+  assert.equal(
+    events.some((event) => event.phase === 'building'),
+    true,
+  );
+
+  buildDeferred.resolve({
+    zipPath: '/tmp/merged.zip',
+    revision: 'rev-101291',
+    dictionaryTitle: 'SubMiner Character Dictionary',
+    entryCount: 2560,
+  });
+  await syncPromise;
+});
+
 test('auto sync waits for tokenization-ready gate before Yomitan mutations', async () => {
   const userDataPath = makeTempDir();
   const gate = (() => {

src/main/runtime/character-dictionary-auto-sync.ts

@@ -25,7 +25,7 @@ export interface CharacterDictionaryAutoSyncConfig {
 }
 
 export interface CharacterDictionaryAutoSyncStatusEvent {
-  phase: 'checking' | 'generating' | 'syncing' | 'importing' | 'ready' | 'failed';
+  phase: 'checking' | 'generating' | 'syncing' | 'building' | 'importing' | 'ready' | 'failed';
   mediaId?: number;
   mediaTitle?: string;
   message: string;
@@ -123,6 +123,10 @@ function buildImportingMessage(mediaTitle: string): string {
   return `Importing character dictionary for ${mediaTitle}...`;
 }
 
+function buildBuildingMessage(mediaTitle: string): string {
+  return `Building character dictionary for ${mediaTitle}...`;
+}
+
 function buildReadyMessage(mediaTitle: string): string {
   return `Character dictionary ready for ${mediaTitle}`;
 }
@@ -227,6 +231,12 @@ export function createCharacterDictionaryAutoSyncRuntimeService(
         !state.mergedDictionaryTitle ||
         !snapshot.fromCache
       ) {
+        deps.onSyncStatus?.({
+          phase: 'building',
+          mediaId: snapshot.mediaId,
+          mediaTitle: snapshot.mediaTitle,
+          message: buildBuildingMessage(snapshot.mediaTitle),
+        });
         deps.logInfo?.('[dictionary:auto-sync] rebuilding merged dictionary for active anime set');
         merged = await deps.buildMergedDictionary(nextActiveMediaIds);
       }

src/main/runtime/config-hot-reload-handlers.test.ts

@@ -25,7 +25,12 @@ test('createConfigHotReloadAppliedHandler runs all hot-reload effects', () => {
 
   applyHotReload(
     {
-      hotReloadFields: ['shortcuts', 'secondarySub.defaultMode', 'ankiConnect.ai'],
+      hotReloadFields: [
+        'shortcuts',
+        'secondarySub.defaultMode',
+        'ankiConnect.ai',
+        'subtitleStyle.autoPauseVideoOnHover',
+      ],
       restartRequiredFields: [],
     },
     config,

src/main/runtime/overlay-window-factory-main-deps.test.ts

@@ -16,12 +16,14 @@ test('overlay window factory main deps builders return mapped handlers', () => {
     setOverlayDebugVisualizationEnabled: (enabled) => calls.push(`debug:${enabled}`),
     isOverlayVisible: (kind) => kind === 'visible',
     tryHandleOverlayShortcutLocalFallback: () => false,
+    forwardTabToMpv: () => calls.push('forward-tab'),
     onWindowClosed: (kind) => calls.push(`closed:${kind}`),
   });
 
   const overlayDeps = buildOverlayDeps();
   assert.equal(overlayDeps.isDev, true);
   assert.equal(overlayDeps.isOverlayVisible('visible'), true);
+  overlayDeps.forwardTabToMpv();
 
   const buildMainDeps = createBuildCreateMainWindowMainDepsHandler({
     createOverlayWindow: () => ({ id: 'visible' }),
@@ -37,5 +39,5 @@ test('overlay window factory main deps builders return mapped handlers', () => {
   const modalDeps = buildModalDeps();
   modalDeps.setModalWindow(null);
 
-  assert.deepEqual(calls, ['set-main', 'set-modal']);
+  assert.deepEqual(calls, ['forward-tab', 'set-main', 'set-modal']);
 });

src/main/runtime/overlay-window-factory-main-deps.ts

@@ -8,6 +8,7 @@ export function createBuildCreateOverlayWindowMainDepsHandler<TWindow>(deps: {
       setOverlayDebugVisualizationEnabled: (enabled: boolean) => void;
       isOverlayVisible: (windowKind: 'visible' | 'modal') => boolean;
       tryHandleOverlayShortcutLocalFallback: (input: Electron.Input) => boolean;
+      forwardTabToMpv: () => void;
       onWindowClosed: (windowKind: 'visible' | 'modal') => void;
     },
   ) => TWindow;
@@ -17,6 +18,7 @@ export function createBuildCreateOverlayWindowMainDepsHandler<TWindow>(deps: {
   setOverlayDebugVisualizationEnabled: (enabled: boolean) => void;
   isOverlayVisible: (windowKind: 'visible' | 'modal') => boolean;
   tryHandleOverlayShortcutLocalFallback: (input: Electron.Input) => boolean;
+  forwardTabToMpv: () => void;
   onWindowClosed: (windowKind: 'visible' | 'modal') => void;
 }) {
   return () => ({
@@ -27,6 +29,7 @@ export function createBuildCreateOverlayWindowMainDepsHandler<TWindow>(deps: {
     setOverlayDebugVisualizationEnabled: deps.setOverlayDebugVisualizationEnabled,
     isOverlayVisible: deps.isOverlayVisible,
     tryHandleOverlayShortcutLocalFallback: deps.tryHandleOverlayShortcutLocalFallback,
+    forwardTabToMpv: deps.forwardTabToMpv,
     onWindowClosed: deps.onWindowClosed,
   });
 }

src/main/runtime/overlay-window-factory.test.ts

@@ -15,6 +15,7 @@ test('create overlay window handler forwards options and kind', () => {
       assert.equal(options.isDev, true);
       assert.equal(options.isOverlayVisible('visible'), true);
       assert.equal(options.isOverlayVisible('modal'), false);
+      options.forwardTabToMpv();
       options.onRuntimeOptionsChanged();
       options.setOverlayDebugVisualizationEnabled(true);
       options.onWindowClosed(kind);
@@ -26,11 +27,18 @@ test('create overlay window handler forwards options and kind', () => {
     setOverlayDebugVisualizationEnabled: (enabled) => calls.push(`debug:${enabled}`),
     isOverlayVisible: (kind) => kind === 'visible',
     tryHandleOverlayShortcutLocalFallback: () => false,
+    forwardTabToMpv: () => calls.push('forward-tab'),
     onWindowClosed: (kind) => calls.push(`closed:${kind}`),
   });
 
   assert.equal(createOverlayWindow('visible'), window);
-  assert.deepEqual(calls, ['kind:visible', 'runtime-options', 'debug:true', 'closed:visible']);
+  assert.deepEqual(calls, [
+    'kind:visible',
+    'forward-tab',
+    'runtime-options',
+    'debug:true',
+    'closed:visible',
+  ]);
 });
 
 test('create main window handler stores visible window', () => {

src/main/runtime/overlay-window-factory.ts

@@ -10,6 +10,7 @@ export function createCreateOverlayWindowHandler<TWindow>(deps: {
       setOverlayDebugVisualizationEnabled: (enabled: boolean) => void;
       isOverlayVisible: (windowKind: OverlayWindowKind) => boolean;
       tryHandleOverlayShortcutLocalFallback: (input: Electron.Input) => boolean;
+      forwardTabToMpv: () => void;
       onWindowClosed: (windowKind: OverlayWindowKind) => void;
     },
   ) => TWindow;
@@ -19,6 +20,7 @@ export function createCreateOverlayWindowHandler<TWindow>(deps: {
   setOverlayDebugVisualizationEnabled: (enabled: boolean) => void;
   isOverlayVisible: (windowKind: OverlayWindowKind) => boolean;
   tryHandleOverlayShortcutLocalFallback: (input: Electron.Input) => boolean;
+  forwardTabToMpv: () => void;
   onWindowClosed: (windowKind: OverlayWindowKind) => void;
 }) {
   return (kind: OverlayWindowKind): TWindow => {
@@ -29,6 +31,7 @@ export function createCreateOverlayWindowHandler<TWindow>(deps: {
       setOverlayDebugVisualizationEnabled: deps.setOverlayDebugVisualizationEnabled,
       isOverlayVisible: deps.isOverlayVisible,
       tryHandleOverlayShortcutLocalFallback: deps.tryHandleOverlayShortcutLocalFallback,
+      forwardTabToMpv: deps.forwardTabToMpv,
       onWindowClosed: deps.onWindowClosed,
     });
   };

src/main/runtime/overlay-window-runtime-handlers.test.ts

@@ -19,6 +19,7 @@ test('overlay window runtime handlers compose create/main/modal handlers', () =>
       },
       isOverlayVisible: (kind) => kind === 'visible',
       tryHandleOverlayShortcutLocalFallback: () => false,
+      forwardTabToMpv: () => calls.push('forward-tab'),
       onWindowClosed: (kind) => calls.push(`closed:${kind}`),
     },
     setMainWindow: (window) => {

src/main/runtime/startup-osd-sequencer.test.ts

@@ -72,6 +72,31 @@ test('startup OSD buffers checking behind annotations and replaces it with later
   ]);
 });
 
+test('startup OSD replaces earlier dictionary progress with later building progress', () => {
+  const osdMessages: string[] = [];
+  const sequencer = createStartupOsdSequencer({
+    showOsd: (message) => {
+      osdMessages.push(message);
+    },
+  });
+
+  sequencer.notifyCharacterDictionaryStatus(
+    makeDictionaryEvent('syncing', 'Updating character dictionary for Frieren...'),
+  );
+  sequencer.showAnnotationLoading('Loading subtitle annotations |');
+  sequencer.markTokenizationReady();
+  sequencer.notifyCharacterDictionaryStatus(
+    makeDictionaryEvent('building', 'Building character dictionary for Frieren...'),
+  );
+
+  sequencer.markAnnotationLoadingComplete('Subtitle annotations loaded');
+
+  assert.deepEqual(osdMessages, [
+    'Loading subtitle annotations |',
+    'Building character dictionary for Frieren...',
+  ]);
+});
+
 test('startup OSD skips buffered dictionary ready messages when progress completed before it became visible', () => {
   const osdMessages: string[] = [];
   const sequencer = createStartupOsdSequencer({

src/main/runtime/startup-osd-sequencer.ts

@@ -1,5 +1,5 @@
 export interface StartupOsdSequencerCharacterDictionaryEvent {
-  phase: 'checking' | 'generating' | 'syncing' | 'importing' | 'ready' | 'failed';
+  phase: 'checking' | 'generating' | 'syncing' | 'building' | 'importing' | 'ready' | 'failed';
   message: string;
 }
 
@@ -74,6 +74,7 @@ export function createStartupOsdSequencer(deps: { showOsd: (message: string) =>
         event.phase === 'checking' ||
         event.phase === 'generating' ||
         event.phase === 'syncing' ||
+        event.phase === 'building' ||
         event.phase === 'importing'
       ) {
         pendingDictionaryProgress = event;

src/renderer/positioning/position-state.test.ts

@@ -38,6 +38,7 @@ function createContext(subtitleHeight: number) {
     state: {
       currentYPercent: null,
       persistedSubtitlePosition: { yPercent: 10 },
+      isOverSubtitle: false,
     },
   };
 }

src/renderer/positioning/position-state.ts

@@ -84,6 +84,19 @@ function getNextPersistedPosition(
   };
 }
 
+function applyMarginBottom(ctx: RendererContext, yPercent: number): void {
+  const clampedPercent = clampYPercent(ctx, yPercent);
+  ctx.state.currentYPercent = clampedPercent;
+  const marginBottom = (clampedPercent / 100) * getViewportHeight();
+
+  ctx.dom.subtitleContainer.style.position = '';
+  ctx.dom.subtitleContainer.style.left = '';
+  ctx.dom.subtitleContainer.style.top = '';
+  ctx.dom.subtitleContainer.style.right = '';
+  ctx.dom.subtitleContainer.style.transform = '';
+  ctx.dom.subtitleContainer.style.marginBottom = `${marginBottom}px`;
+}
+
 export function createInMemorySubtitlePositionController(
   ctx: RendererContext,
 ): SubtitlePositionController {
@@ -98,16 +111,7 @@ export function createInMemorySubtitlePositionController(
   }
 
   function applyYPercent(yPercent: number): void {
-    const clampedPercent = clampYPercent(ctx, yPercent);
+    applyMarginBottom(ctx, yPercent);
-    ctx.state.currentYPercent = clampedPercent;
-    const marginBottom = (clampedPercent / 100) * getViewportHeight();
-
-    ctx.dom.subtitleContainer.style.position = '';
-    ctx.dom.subtitleContainer.style.left = '';
-    ctx.dom.subtitleContainer.style.top = '';
-    ctx.dom.subtitleContainer.style.right = '';
-    ctx.dom.subtitleContainer.style.transform = '';
-    ctx.dom.subtitleContainer.style.marginBottom = `${marginBottom}px`;
   }
 
   function persistSubtitlePositionPatch(patch: Partial<SubtitlePosition>): void {

src/renderer/renderer.ts

@@ -374,7 +374,8 @@ async function init(): Promise<void> {
 
   await keyboardHandlers.setupMpvInputForwarding();
 
-  subtitleRenderer.applySubtitleStyle(await window.electronAPI.getSubtitleStyle());
+  const initialSubtitleStyle = await window.electronAPI.getSubtitleStyle();
+  subtitleRenderer.applySubtitleStyle(initialSubtitleStyle);
 
   positioning.applyStoredSubtitlePosition(
     await window.electronAPI.getSubtitlePosition(),