chore: archive completed backlog tasks and update ordinals

- Move ~35 completed tasks from backlog/tasks/ to backlog/completed/
- Add ordinal fields to remaining in-progress task files
- Mark task-255 (playlist browser modal) as Done with final notes

backlog/tasks/task-219 - Restore-streamed-video-progress-in-anime-episodes.md

@@ -5,7 +5,7 @@ status: Done
 assignee:
   - codex
 created_date: '2026-03-22 21:25'
-updated_date: '2026-03-24 06:44'
+updated_date: '2026-03-31 19:37'
 labels:
   - stats
   - immersion-tracker
@@ -21,6 +21,7 @@ references:
   - >-
     /Users/sudacode/projects/japanese/SubMiner/src/core/services/immersion-tracker-service.test.ts
 priority: medium
+ordinal: 178500
 ---
 
 ## Description

backlog/tasks/task-234 - Address-PR-35-latest-CodeRabbit-review-round.md

@@ -5,7 +5,7 @@ status: Done
 assignee:
   - codex
 created_date: '2026-03-26 03:59'
-updated_date: '2026-03-26 04:01'
+updated_date: '2026-03-31 19:37'
 labels:
   - review-comments
   - coderabbit
@@ -18,6 +18,7 @@ references:
   - >-
     /Users/sudacode/projects/japanese/SubMiner/src/main/runtime/youtube-playback-launch.ts
 priority: medium
+ordinal: 177500
 ---
 
 ## Description

backlog/tasks/task-235 - Address-PR-35-autoplay-retry-CodeRabbit-follow-up.md

@@ -5,7 +5,7 @@ status: Done
 assignee:
   - codex
 created_date: '2026-03-26 04:30'
-updated_date: '2026-03-26 04:31'
+updated_date: '2026-03-31 19:37'
 labels:
   - review-comments
   - coderabbit
@@ -13,6 +13,7 @@ dependencies: []
 references:
   - /Users/sudacode/projects/japanese/SubMiner/src/main.ts
 priority: medium
+ordinal: 176500
 ---
 
 ## Description

backlog/tasks/task-238.3 - Introduce-domain-type-entrypoints-and-shrink-src-types.ts-import-surface.md

@@ -4,7 +4,7 @@ title: Introduce domain type entrypoints and shrink src/types.ts import surface
 status: Done
 assignee: []
 created_date: '2026-03-26 20:49'
-updated_date: '2026-03-27 00:14'
+updated_date: '2026-03-31 19:37'
 labels:
   - tech-debt
   - types
@@ -18,6 +18,7 @@ references:
   - docs/architecture/README.md
 parent_task_id: TASK-238
 priority: medium
+ordinal: 174500
 ---
 
 ## Description
@@ -27,7 +28,6 @@ priority: medium
 <!-- SECTION:DESCRIPTION:END -->
 
 ## Acceptance Criteria
-
 <!-- AC:BEGIN -->
 - [x] #1 Domain-focused type modules exist for the main clusters currently mixed together in `src/types.ts` (for example Anki, config/runtime, subtitle/media, and integration/runtime-option types).
 - [x] #2 `src/types.ts` becomes a thinner compatibility layer or barrel instead of the sole source of truth for every shared type.

backlog/tasks/task-238.4 - Decompose-character-dictionary-runtime-into-fetch-build-and-cache-modules.md

@@ -1,10 +1,10 @@
 ---
 id: TASK-238.4
-title: Decompose character dictionary runtime into fetch, build, and cache modules
+title: 'Decompose character dictionary runtime into fetch, build, and cache modules'
 status: Done
-updated_date: '2026-03-27 00:20'
 assignee: []
 created_date: '2026-03-26 20:49'
+updated_date: '2026-03-31 19:37'
 labels:
   - tech-debt
   - runtime
@@ -19,6 +19,7 @@ references:
   - docs/architecture/README.md
 parent_task_id: TASK-238
 priority: medium
+ordinal: 173500
 ---
 
 ## Description
@@ -28,7 +29,6 @@ priority: medium
 <!-- SECTION:DESCRIPTION:END -->
 
 ## Acceptance Criteria
-
 <!-- AC:BEGIN -->
 - [x] #1 AniList fetch/parsing logic, dictionary-entry building, and snapshot/cache/zip persistence no longer live in one giant file.
 - [x] #2 The public runtime API stays behavior-compatible for current callers.

backlog/tasks/task-238.5 - Split-immersion-tracker-query-layer-into-focused-read-model-modules.md

@@ -5,7 +5,7 @@ status: Done
 assignee:
   - codex
 created_date: '2026-03-26 20:49'
-updated_date: '2026-03-27 00:00'
+updated_date: '2026-03-31 19:37'
 labels:
   - tech-debt
   - stats
@@ -20,6 +20,7 @@ references:
   - src/core/services/immersion-tracker-service.ts
 parent_task_id: TASK-238
 priority: medium
+ordinal: 175500
 ---
 
 ## Description
@@ -29,7 +30,6 @@ priority: medium
 <!-- SECTION:DESCRIPTION:END -->
 
 ## Acceptance Criteria
-
 <!-- AC:BEGIN -->
 - [x] #1 Query responsibilities are grouped into focused modules such as library/session detail, vocabulary/kanji detail, and maintenance/cleanup helpers.
 - [x] #2 The stats server and immersion tracker service depend on stable exported query surfaces instead of one monolithic file.

backlog/tasks/task-238.6 - Extract-remaining-inline-runtime-logic-and-composer-gaps-from-src-main.ts.md

@@ -4,7 +4,7 @@ title: Extract remaining inline runtime logic and composer gaps from src/main.ts
 status: Done
 assignee: []
 created_date: '2026-03-27 00:00'
-updated_date: '2026-03-27 22:13'
+updated_date: '2026-03-31 19:37'
 labels:
   - tech-debt
   - runtime
@@ -24,6 +24,7 @@ references:
   - src/main/runtime/composers
 parent_task_id: TASK-238
 priority: high
+ordinal: 172500
 ---
 
 ## Description
@@ -33,7 +34,6 @@ priority: high
 <!-- SECTION:DESCRIPTION:END -->
 
 ## Acceptance Criteria
-
 <!-- AC:BEGIN -->
 - [x] #1 `runYoutubePlaybackFlow`, `maybeSignalPluginAutoplayReady`, `refreshSubtitlePrefetchFromActiveTrack`, `publishDiscordPresence`, and `handleModalInputStateChange` no longer live as substantial inline logic in `src/main.ts`.
 - [x] #2 The large subtitle/prefetch, stats startup, and overlay visibility dependency groupings are wrapped behind named composer helpers instead of remaining inline in `src/main.ts`.

backlog/tasks/task-238.7 - Split-src-main.ts-into-boot-phase-services-runtimes-and-handlers.md

@@ -1,10 +1,10 @@
 ---
 id: TASK-238.7
-title: Split src/main.ts into boot-phase services, runtimes, and handlers
+title: 'Split src/main.ts into boot-phase services, runtimes, and handlers'
 status: Done
 assignee: []
 created_date: '2026-03-27 00:00'
-updated_date: '2026-03-27 22:45'
+updated_date: '2026-03-31 19:37'
 labels:
   - tech-debt
   - runtime
@@ -21,6 +21,7 @@ references:
   - src/main/runtime/composers
 parent_task_id: TASK-238
 priority: high
+ordinal: 171500
 ---
 
 ## Description
@@ -30,7 +31,6 @@ After the remaining inline runtime logic and composer gaps are extracted, `src/m
 <!-- SECTION:DESCRIPTION:END -->
 
 ## Acceptance Criteria
-
 <!-- AC:BEGIN -->
 - [x] #1 Service instantiation lives in a dedicated boot module instead of a large inline setup block in `src/main.ts`.
 - [x] #2 Domain runtime composition lives in a dedicated boot module, separate from lifecycle and handler dispatch.

backlog/tasks/task-242 - Fix-stats-server-Bun-fallback-in-coverage-lane.md

@@ -4,7 +4,7 @@ title: Fix stats server Bun fallback in coverage lane
 status: Done
 assignee: []
 created_date: '2026-03-29 07:31'
-updated_date: '2026-03-29 07:37'
+updated_date: '2026-03-31 19:37'
 labels:
   - ci
   - bug
@@ -13,6 +13,7 @@ dependencies: []
 references:
   - 'PR #36'
 priority: high
+ordinal: 170500
 ---
 
 ## Description

backlog/tasks/task-246 - Migrate-Discord-Rich-Presence-to-maintained-RPC-wrapper.md

@@ -4,13 +4,14 @@ title: Migrate Discord Rich Presence to maintained RPC wrapper
 status: Done
 assignee: []
 created_date: '2026-03-29 08:17'
-updated_date: '2026-03-29 08:22'
+updated_date: '2026-03-31 19:37'
 labels:
   - dependency
   - discord
   - presence
 dependencies: []
 priority: medium
+ordinal: 169500
 ---
 
 ## Description

backlog/tasks/task-247 - Strip-inline-subtitle-markup-from-subtitle-sidebar-cues.md

@@ -5,13 +5,14 @@ status: Done
 assignee:
   - codex
 created_date: '2026-03-29 10:01'
-updated_date: '2026-03-29 10:10'
+updated_date: '2026-03-31 19:37'
 labels: []
 dependencies: []
 references:
   - src/core/services/subtitle-cue-parser.ts
   - src/renderer/modals/subtitle-sidebar.ts
   - src/core/services/subtitle-cue-parser.test.ts
+ordinal: 168500
 ---
 
 ## Description

backlog/tasks/task-248 - Fix-macOS-visible-overlay-toggle-getting-immediately-restored.md

@@ -4,7 +4,7 @@ title: Fix macOS visible overlay toggle getting immediately restored
 status: Done
 assignee: []
 created_date: '2026-03-29 10:03'
-updated_date: '2026-03-29 22:14'
+updated_date: '2026-03-31 19:37'
 labels: []
 dependencies: []
 references:
@@ -13,6 +13,7 @@ references:
   - /Users/sudacode/projects/japanese/SubMiner/src/core/services/cli-command.ts
   - >-
     /Users/sudacode/projects/japanese/SubMiner/src/main/overlay-visibility-runtime.ts
+ordinal: 165500
 ---
 
 ## Description

backlog/tasks/task-249 - Fix-AniList-token-persistence-on-setup-login.md

@@ -4,7 +4,7 @@ title: Fix AniList token persistence on setup login
 status: Done
 assignee: []
 created_date: '2026-03-29 10:08'
-updated_date: '2026-03-29 19:42'
+updated_date: '2026-03-31 19:37'
 labels:
   - anilist
   - bug
@@ -15,6 +15,7 @@ documentation:
   - src/main/runtime/anilist-token-refresh.ts
   - docs-site/anilist-integration.md
 priority: high
+ordinal: 166500
 ---
 
 ## Description

backlog/tasks/task-250 - Restore-macOS-mpv-passthrough-while-overlay-subtitle-sidebar-is-open.md

@@ -5,7 +5,7 @@ status: Done
 assignee:
   - '@codex'
 created_date: '2026-03-29 10:10'
-updated_date: '2026-03-29 10:23'
+updated_date: '2026-03-31 19:37'
 labels:
   - bug
   - macos
@@ -24,6 +24,7 @@ references:
   - >-
     /Users/sudacode/projects/japanese/SubMiner/src/renderer/overlay-mouse-ignore.test.ts
 priority: high
+ordinal: 167500
 ---
 
 ## Description

backlog/tasks/task-251 - Docs-add-subtitle-sidebar-and-Jimaku-integration-pages.md

@@ -4,11 +4,12 @@ title: 'Docs: add subtitle sidebar and Jimaku integration pages'
 status: Done
 assignee: []
 created_date: '2026-03-29 22:36'
-updated_date: '2026-03-29 22:38'
+updated_date: '2026-03-31 19:37'
 labels:
   - docs
 dependencies: []
 priority: medium
+ordinal: 164500
 ---
 
 ## Description

backlog/tasks/task-252 - Harden-AUR-publish-release-step-against-transient-SSH-failures.md

@@ -4,13 +4,14 @@ title: Harden AUR publish release step against transient SSH failures
 status: Done
 assignee: []
 created_date: '2026-03-29 23:46'
-updated_date: '2026-03-29 23:49'
+updated_date: '2026-03-31 19:37'
 labels:
   - release
   - ci
   - aur
 dependencies: []
 priority: high
+ordinal: 163500
 ---
 
 ## Description

backlog/tasks/task-253 - Fix-animated-AVIF-lead-in-alignment-with-sentence-audio.md

@@ -5,7 +5,7 @@ status: Done
 assignee:
   - codex
 created_date: '2026-03-30 01:59'
-updated_date: '2026-03-30 02:03'
+updated_date: '2026-03-31 19:37'
 labels: []
 dependencies: []
 references:
@@ -14,6 +14,7 @@ references:
   - /Users/sudacode/projects/japanese/SubMiner/src/anki-integration.ts
   - /Users/sudacode/projects/japanese/SubMiner/src/core/services/stats-server.ts
   - /Users/sudacode/projects/japanese/SubMiner/src/media-generator.ts
+ordinal: 162500
 ---
 
 ## Description

backlog/tasks/task-254 - Fix-AniList-token-persistence-when-safe-storage-is-unavailable.md

@@ -5,7 +5,7 @@ status: Done
 assignee:
   - codex
 created_date: '2026-03-30 02:10'
-updated_date: '2026-03-30 02:20'
+updated_date: '2026-03-31 19:37'
 labels:
   - bug
   - anilist
@@ -17,6 +17,7 @@ references:
   - >-
     /Users/sudacode/projects/japanese/SubMiner/src/main/runtime/anilist-token-refresh.ts
 priority: high
+ordinal: 161500
 ---
 
 ## Description

backlog/tasks/task-255 - Add-overlay-playlist-browser-modal-for-sibling-video-files-and-mpv-queue.md

@@ -1,17 +1,18 @@
 ---
 id: TASK-255
 title: Add overlay playlist browser modal for sibling video files and mpv queue
-status: In Progress
+status: Done
 assignee:
   - '@codex'
 created_date: '2026-03-30 05:46'
-updated_date: '2026-03-31 05:59'
+updated_date: '2026-03-31 19:37'
 labels:
   - feature
   - overlay
   - mpv
   - launcher
 dependencies: []
+ordinal: 180500
 ---
 
 ## Description
@@ -22,10 +23,10 @@ Add an in-session overlay modal that opens from a keybinding during active playb
 
 ## Acceptance Criteria
 <!-- AC:BEGIN -->
-- [ ] #1 An overlay modal can be opened during active playback from a dedicated keybinding and closed without disrupting existing modal behavior.
+- [x] #1 An overlay modal can be opened during active playback from a dedicated keybinding and closed without disrupting existing modal behavior.
-- [ ] #2 The modal shows video files from the current media file's parent directory in best-effort episode order and highlights the current file when present.
+- [x] #2 The modal shows video files from the current media file's parent directory in best-effort episode order and highlights the current file when present.
-- [ ] #3 The modal shows the active mpv playlist/queue with enough metadata to identify the current item and queued order.
+- [x] #3 The modal shows the active mpv playlist/queue with enough metadata to identify the current item and queued order.
-- [ ] #4 The user can add a directory file to the mpv playlist, remove playlist items, and reorder playlist items from the modal using both mouse and keyboard interactions.
+- [x] #4 The user can add a directory file to the mpv playlist, remove playlist items, and reorder playlist items from the modal using both mouse and keyboard interactions.
 - [x] #5 Modal state stays in sync after playlist mutations so the rendered queue reflects mpv's current playlist order.
 - [x] #6 Feature coverage includes automated tests for ordering/playlist behavior and docs or shortcut/help updates for the new modal.
 <!-- AC:END -->
@@ -84,4 +85,8 @@ Split playlist-browser UI row rendering into `src/renderer/modals/playlist-brows
 2026-03-30 latest CodeRabbit remediation on PR #37: switched nowMs() numeric test-clock branch from Math.floor() to Math.trunc() so numeric and string-backed mock clocks agree for negative fractional values. Refactored playlist-browser modal tests onto a shared setup/teardown fixture that restores global window/document descriptors correctly, and added regression coverage that injected globals are deleted when originally absent. Verification: `bun test src/core/services/immersion-tracker/time.test.ts src/renderer/modals/playlist-browser.test.ts`, `bun run typecheck`.
 
 2026-03-30 CodeRabbit follow-up: wrapped the injected-globals cleanup regression in try/finally so restore always runs, and changed the keydown test append mock to return createMutationSnapshot() before exercising Ctrl+ArrowDown. Verified with `bun test src/renderer/modals/playlist-browser.test.ts` and `bun run typecheck`.
+
+2026-03-31 assessment: the playlist-browser feature is landed on `main` via `d51e7fe4 Add playlist browser overlay modal (#37)` with runtime, IPC, renderer, keybinding, and changelog/docs coverage present. Verified passes: `bun test src/main/runtime/playlist-browser-runtime.test.ts src/main/runtime/playlist-browser-open.test.ts src/main/runtime/playlist-browser-sort.test.ts src/renderer/handlers/keyboard.test.ts src/core/services/ipc.test.ts src/core/services/ipc-command.test.ts src/config/definitions/domain-registry.test.ts`.
+
+Remaining action item before close: fix `src/renderer/modals/playlist-browser.test.ts` so the cleanup regression does not assume `globalThis.window` / `globalThis.document` start absent under Bun, rerun the playlist-browser modal lane (and then typecheck/build if you want the full closeout proof), then finalize the task.
 <!-- SECTION:NOTES:END -->

backlog/tasks/task-256 - Fix-texthooker-page-live-websocket-connect-send-regression.md

@@ -5,13 +5,14 @@ status: Done
 assignee:
   - codex
 created_date: '2026-03-30 06:04'
-updated_date: '2026-03-30 06:12'
+updated_date: '2026-03-31 19:37'
 labels:
   - bug
   - texthooker
   - websocket
 dependencies: []
 priority: medium
+ordinal: 160500
 ---
 
 ## Description

backlog/tasks/task-257 - Fix-texthooker-only-mode-startup-to-initialize-websocket-pipeline.md

@@ -5,7 +5,7 @@ status: Done
 assignee:
   - codex
 created_date: '2026-03-30 06:15'
-updated_date: '2026-03-30 06:17'
+updated_date: '2026-03-31 19:37'
 labels:
   - bug
   - texthooker
@@ -13,6 +13,7 @@ labels:
   - startup
 dependencies: []
 priority: high
+ordinal: 159500
 ---
 
 ## Description

backlog/tasks/task-258 - Stop-plugin-auto-start-from-spawning-separate-texthooker-helper.md

@@ -5,7 +5,7 @@ status: Done
 assignee:
   - codex
 created_date: '2026-03-30 06:25'
-updated_date: '2026-03-30 06:26'
+updated_date: '2026-03-31 19:37'
 labels:
   - bug
   - texthooker
@@ -14,6 +14,7 @@ labels:
   - startup
 dependencies: []
 priority: high
+ordinal: 158500
 ---
 
 ## Description

backlog/tasks/task-259 - Fix-integrated-start-texthooker-startup-skipping-texthooker-server.md

@@ -4,13 +4,14 @@ title: Fix integrated --start --texthooker startup skipping texthooker server
 status: Done
 assignee: []
 created_date: '2026-03-30 06:48'
-updated_date: '2026-03-30 06:56'
+updated_date: '2026-03-31 19:37'
 labels:
   - bug
   - texthooker
   - startup
 dependencies: []
 priority: high
+ordinal: 157500
 ---
 
 ## Description

backlog/tasks/task-260 - Fix-macOS-overlay-subtitle-sidebar-passthrough-without-requiring-a-subtitle-hover-cycle.md

@@ -7,7 +7,7 @@ status: Done
 assignee:
   - '@codex'
 created_date: '2026-03-31 00:58'
-updated_date: '2026-03-31 01:01'
+updated_date: '2026-03-31 19:37'
 labels:
   - bug
   - macos
@@ -27,6 +27,7 @@ references:
 documentation:
   - docs/workflow/verification.md
 priority: high
+ordinal: 156500
 ---
 
 ## Description

backlog/tasks/task-261 - Fix-immersion-tracker-SQLite-timestamp-truncation.md

@@ -1,9 +1,10 @@
 ---
 id: TASK-261
 title: Fix immersion tracker SQLite timestamp truncation
-status: In Progress
+status: Done
 assignee: []
 created_date: '2026-03-31 01:45'
+updated_date: '2026-03-31 19:37'
 labels:
   - immersion-tracker
   - sqlite
@@ -12,7 +13,7 @@ dependencies: []
 references:
   - src/core/services/immersion-tracker
 priority: medium
-ordinal: 1200
+ordinal: 179500
 ---
 
 ## Description
@@ -23,7 +24,17 @@ Current-epoch millisecond values are being truncated by the libsql driver when b
 
 ## Acceptance Criteria
 <!-- AC:BEGIN -->
-- [ ] #1 Current-epoch millisecond timestamps persist correctly in session, telemetry, lifetime, and rollup tables
+- [x] #1 Current-epoch millisecond timestamps persist correctly in session, telemetry, lifetime, and rollup tables
-- [ ] #2 Startup backfill and destroy/finalize flows keep retained sessions and lifetime summaries consistent
+- [x] #2 Startup backfill and destroy/finalize flows keep retained sessions and lifetime summaries consistent
-- [ ] #3 Regression tests cover the destroyed-session, startup backfill, and distinct-day/distinct-video lifetime semantics
+- [x] #3 Regression tests cover the destroyed-session, startup backfill, and distinct-day/distinct-video lifetime semantics
 <!-- AC:END -->
+
+## Implementation Notes
+
+<!-- SECTION:NOTES:BEGIN -->
+2026-03-31 assessment: epoch-ms timestamp writes now route through `toDbMs()` / `toDbTimestamp()` in `src/core/services/immersion-tracker/query-shared.ts`, which avoids libsql numeric-parameter truncation by binding BigInt/string values before they hit SQLite. The fix is wired through the session, storage/telemetry, lifetime, and rollup-maintenance paths in `src/core/services/immersion-tracker/session.ts`, `src/core/services/immersion-tracker/storage.ts`, `src/core/services/immersion-tracker/lifetime.ts`, and `src/core/services/immersion-tracker/maintenance.ts`.
+
+Acceptance coverage is present: `bun test src/core/services/immersion-tracker-service.test.ts` passed with explicit regressions for destroy/finalize persistence, startup backfill when retained sessions exist but lifetime tables are empty, startup reconciliation of stale active sessions, `rebuildLifetimeSummaries`, and distinct-day / distinct-video lifetime semantics. `bun test src/core/services/immersion-tracker/time.test.ts src/core/services/immersion-tracker/maintenance.test.ts` also passed.
+
+Remaining action item before close: fix the two `src/main/runtime/stats-cli-command.test.ts` cleanup-lifetime assertions that currently use Bun-misparsed underscored millisecond literals (`1_710_000_000_000` evaluates to `-2147483648` under Bun 1.3.11), rerun that verification lane, then write the final summary and mark the task Done.
+<!-- SECTION:NOTES:END -->

backlog/tasks/task-262 - Fix-duplicate-AniList-post-watch-updates-for-watched-episodes.md

@@ -5,11 +5,12 @@ status: Done
 assignee:
   - codex
 created_date: '2026-03-31 19:03'
-updated_date: '2026-03-31 19:05'
+updated_date: '2026-03-31 19:37'
 labels:
   - bug
   - anilist
 dependencies: []
+ordinal: 155500
 ---
 
 ## Description