clean up and add new showcase videos

backlog/tasks/task-133 - Improve-AniList-character-dictionary-parity-with-upstream-guide.md

@@ -1,10 +1,11 @@
 ---
 id: TASK-133
 title: Improve AniList character dictionary parity with upstream guide
-status: To Do
-assignee: []
+status: In Progress
+assignee:
+  - OpenCode
 created_date: '2026-03-08 21:06'
-updated_date: '2026-03-08 21:35'
+updated_date: '2026-03-10 06:18'
 labels:
   - dictionary
   - anilist
@@ -28,15 +29,11 @@ priority: high
 ## Description
 
 <!-- SECTION:DESCRIPTION:BEGIN -->
-
 Plan and implement guide-faithful parity improvements for the AniList character dictionary flow inside SubMiner's current single-media generation path. Scope includes AniList first/last name hints, hint-aware reading generation for kanji/native names, expanded honorific coverage, 160x200 JPEG thumbnail handling, and AniList 429 retry/backoff behavior.
-
 <!-- SECTION:DESCRIPTION:END -->
 
 ## Acceptance Criteria
-
 <!-- AC:BEGIN -->
-
 - [ ] #1 AniList character queries include first/last name fields and preserve them through runtime data models.
 - [ ] #2 Dictionary generation uses hint-aware name splitting and reading generation for kanji and mixed native names, not only kana-only readings.
 - [ ] #3 Honorific generation is expanded substantially toward upstream coverage and is covered by regression tests.
@@ -44,10 +41,20 @@ Plan and implement guide-faithful parity improvements for the AniList character
 - [ ] #5 AniList requests handle 429 responses with bounded exponential backoff and tests cover retry behavior.
 <!-- AC:END -->
 
+## Implementation Plan
+
+<!-- SECTION:PLAN:BEGIN -->
+1. Add targeted regression tests in `src/main/character-dictionary-runtime.test.ts` for AniList 429 retry behavior and thumbnail conversion/fallback image paths before changing runtime code.
+2. Update `fetchAniList` in `src/main/character-dictionary-runtime.ts` to retry 429 responses with bounded exponential backoff or `Retry-After` delays, while preserving existing request pacing hook behavior.
+3. Update `downloadCharacterImage` to run downloaded bytes through `convertImageToThumbnail`, returning `.jpg` paths when conversion succeeds and preserving original bytes/extensions on fallback.
+4. Run focused character-dictionary tests first, then broader required verification commands if the focused lane passes.
+5. Record progress against acceptance criteria #4 and #5 in TASK-133 notes/final checklist once verified.
+<!-- SECTION:PLAN:END -->
+
 ## Implementation Notes
 
 <!-- SECTION:NOTES:BEGIN -->
-
 Approved design and implementation plan captured on 2026-03-08. Scope stays within current single-media AniList dictionary flow; excludes username-driven CURRENT-list fetching and Yomitan auto-update schema work.
 
+Resumed TASK-133 to finish remaining AC #4 image thumbnail wiring and AC #5 AniList 429 retry handling. Existing code already contains helper constants/functions; next work is wiring plus regression coverage.
 <!-- SECTION:NOTES:END -->

backlog/tasks/task-151 - Keep-JLPT-underline-color-stable-during-Yomitan-text-selection.md

@@ -0,0 +1,99 @@
+---
+id: TASK-151
+title: Keep JLPT underline color stable during Yomitan text selection
+status: Done
+assignee:
+  - OpenCode
+created_date: '2026-03-10 06:42'
+updated_date: '2026-03-10 07:54'
+labels: []
+dependencies: []
+references:
+  - src/renderer/style.css
+  - src/renderer/subtitle-render.test.ts
+documentation:
+  - ../subminer-docs/development.md
+  - ../subminer-docs/architecture.md
+priority: medium
+---
+
+## Description
+
+<!-- SECTION:DESCRIPTION:BEGIN -->
+Fix the subtitle overlay so JLPT underlines keep their JLPT color when Yomitan lookups trigger hover/selection styling on tokens that are also known, N+1, or frequency-highlighted.
+<!-- SECTION:DESCRIPTION:END -->
+
+## Acceptance Criteria
+<!-- AC:BEGIN -->
+- [x] #1 JLPT-tagged subtitle tokens keep their JLPT underline color during hover/selection states used by Yomitan lookup.
+- [x] #2 Tokens that combine JLPT with known, N+1, name-match, or frequency styling preserve their primary text color while keeping the JLPT underline color.
+- [x] #3 Renderer regression coverage verifies the JLPT underline color remains explicit in the stylesheet for combined styling states.
+<!-- AC:END -->
+
+## Implementation Plan
+
+<!-- SECTION:PLAN:BEGIN -->
+1. Revert the temporary box-shadow JLPT marker experiment and restore native JLPT underline styling in `src/renderer/style.css`.
+2. Add explicit JLPT hover/selection color rules with higher specificity so Yomitan lookup highlight states cannot repaint the underline to the token hover color.
+3. Update `src/renderer/subtitle-render.test.ts` to verify JLPT hover/selection rules keep the predefined JLPT underline color, then rerun focused and relevant verification commands.
+
+4. Add JLPT-specific `text-decoration-color` overrides directly on child `.c` spans and their hover/selection states, since Yomitan lookup likely paints the decorated child text runs rather than only the parent token span.
+<!-- SECTION:PLAN:END -->
+
+## Implementation Notes
+
+<!-- SECTION:NOTES:BEGIN -->
+Added a renderer regression test that asserts JLPT underline color stays explicit through hover and selection styling.
+
+Updated `src/renderer/style.css` to route JLPT underline color through `--subtitle-jlpt-underline-color` and re-apply it on word/character hover and selection states.
+
+Verification: `bun test src/renderer/subtitle-render.test.ts`, `bun run typecheck`, `bun run test:fast`, `bun run build`, `bun run changelog:lint`, `bunx prettier --check src/renderer/style.css src/renderer/subtitle-render.test.ts changes/jlpt-underline-yomitan.md`. `bun run format:check:src` still fails because of unrelated existing formatting issues in `src/main-entry-runtime.test.ts` and `src/main-entry-runtime.ts`.
+
+User verified the original CSS variable propagation fix did not resolve the live issue; continuing investigation and reopening the task.
+
+Confirmed Chromium was repainting native `text-decoration` underlines with the selected text color; reproduced it in a temporary browser repro and verified that switching the JLPT marker to an inset box-shadow keeps the JLPT color stable during selection.
+
+Replaced the previous native underline approach with a fragment-safe JLPT marker using `box-shadow` plus `box-decoration-break`, then updated stylesheet regression coverage to match the new implementation.
+
+Verification: `bun test src/renderer/subtitle-render.test.ts`, `bunx prettier --check src/renderer/style.css src/renderer/subtitle-render.test.ts`, `bun run typecheck`, `bun run test:fast`, `bun run build`.
+
+User requested reverting the box-shadow marker experiment. Narrowing the fix to preserve native JLPT underline color during Yomitan hover/selection instead of changing the underline rendering method.
+
+Reverted the box-shadow experiment per user request. Restored native JLPT underline styling and added explicit JLPT hover/selection rules so Yomitan lookup states keep the predefined JLPT underline color with `!important`.
+
+Verification after revert/fix: `bun test src/renderer/subtitle-render.test.ts`, `bunx prettier --check src/renderer/style.css src/renderer/subtitle-render.test.ts`, `bun run typecheck`, `bun run build`.
+
+Issue still reproduces specifically during Shift-held Yomitan lookup. Investigating decoration propagation onto child `.c` spans during lookup-triggered hover/selection states.
+
+Added JLPT-specific `text-decoration-color` overrides directly to child `.c` spans and their hover/selection states, in addition to the token span itself, so lookup-triggered decoration painting on child runs keeps the JLPT color.
+
+Verification: `bun test src/renderer/subtitle-render.test.ts`, `bunx prettier --check src/renderer/style.css src/renderer/subtitle-render.test.ts`, `bun run typecheck`, `bun run build`.
+
+Added a final high-specificity combined-state JLPT override after the annotation hover/selection rules. It targets tokens that are both JLPT-tagged and known/N+1/name-match/frequency-highlighted, forcing `text-decoration-color` back to the JLPT variable after the later annotation state blocks.
+
+Verification: `bun test src/renderer/subtitle-render.test.ts`, `bunx prettier --check src/renderer/style.css src/renderer/subtitle-render.test.ts`, `bun run build`.
+
+Switched the JLPT underline from native `text-decoration` to a separate painted underline layer using `background-image` on JLPT tokens. Also changed hover token highlight rules to use `background-color` so the JLPT underline layer survives Shift+Yomitan hover/lookup interactions.
+
+Verification: `bun test src/renderer/subtitle-render.test.ts`, `bunx prettier --check src/renderer/style.css src/renderer/subtitle-render.test.ts`, `bun run build`.
+
+User reports the latest background-image JLPT underline change introduced grey-looking token highlights. Investigating the interaction between the new underline layer and hover background styling.
+
+The background-image underline layer interacts poorly with hover fills and makes highlighted tokens look grey. Switching the separate JLPT underline layer to an inset box-shadow so hover background color and JLPT underline paint can coexist cleanly.
+
+Adjusted the separate JLPT underline layer from `background-image` to inset `box-shadow`. This keeps the underline decoupled from Yomitan hover color while avoiding the grey-looking underline artifact introduced by the background-image approach.
+
+User reports the separate underline layer still disappears/greys out during lookup. Switching strategy again: use a dedicated `border-bottom` JLPT marker instead of box-shadow/background so the underline stays independent from Yomitan hover paint without blending artifacts.
+
+Replaced the separate JLPT underline layer with `border-bottom` plus a small bottom padding. This keeps the underline visually separate from Yomitan hover paint and avoids the disappearing/grey artifact seen with background-image and box-shadow.
+<!-- SECTION:NOTES:END -->
+
+## Final Summary
+
+<!-- SECTION:FINAL_SUMMARY:BEGIN -->
+Switched the JLPT underline layer in `src/renderer/style.css` to `border-bottom` plus `padding-bottom`, keeping it independent from Yomitan hover/selection repainting while avoiding the disappearing or grey artifact seen with the background-image and box-shadow approaches.
+
+Updated `src/renderer/subtitle-render.test.ts` to assert the border-bottom-based JLPT underline layer.
+
+Verification: `bun test src/renderer/subtitle-render.test.ts`, `bunx prettier --check src/renderer/style.css src/renderer/subtitle-render.test.ts`, `bun run build`.
+<!-- SECTION:FINAL_SUMMARY:END -->

package.json

@@ -50,7 +50,7 @@
     "test:launcher": "bun run test:launcher:src",
     "test:core": "bun run test:core:src",
     "test:subtitle": "bun run test:subtitle:src",
-    "test:fast": "bun run test:config:src && bun run test:core:src && bun test src/main-entry-runtime.test.ts src/anki-integration/anki-connect-proxy.test.ts src/release-workflow.test.ts src/ci-workflow.test.ts scripts/build-changelog.test.ts && bun run tsc && bun test dist/main/runtime/registry.test.js",
+    "test:fast": "bun run test:config:src && bun run test:core:src && bun test src/main-entry-runtime.test.ts src/anki-integration/anki-connect-proxy.test.ts src/release-workflow.test.ts src/ci-workflow.test.ts scripts/build-changelog.test.ts scripts/mkv-to-readme-video.test.ts && bun run tsc && bun test dist/main/runtime/registry.test.js",
     "generate:config-example": "bun run build && bun dist/generate-config-example.js",
     "start": "bun run build && electron . --start",
     "dev": "bun run build && electron . --start --dev",

scripts/mkv-to-readme-video.sh

@@ -102,7 +102,19 @@ fi
 
 has_encoder() {
 	local encoder="$1"
-	ffmpeg -hide_banner -encoders 2> /dev/null | grep -qE "[[:space:]]${encoder}[[:space:]]"
+	ffmpeg -hide_banner -encoders 2> /dev/null | awk -v encoder="$encoder" '$2 == encoder { found = 1 } END { exit(found ? 0 : 1) }'
+}
+
+pick_webp_encoder() {
+	if has_encoder "libwebp_anim"; then
+		echo "libwebp_anim"
+		return 0
+	fi
+	if has_encoder "libwebp"; then
+		echo "libwebp"
+		return 0
+	fi
+	return 1
 }
 
 crop_vf="crop=1920:1080:760:205"
@@ -168,14 +180,14 @@ else
 fi
 
 if [[ "$generate_webp" -eq 1 ]]; then
-	if ! has_encoder "libwebp"; then
+	if ! webp_encoder="$(pick_webp_encoder)"; then
 		echo "Error: encoder not found: libwebp" >&2
 		exit 1
 	fi
-	echo "Generating animated WebP: $webp_out"
+	echo "Generating animated WebP with $webp_encoder: $webp_out"
 	ffmpeg "$overwrite_flag" -i "$input" \
 		-vf "${crop_vf},fps=24,scale=960:-1:flags=lanczos" \
-		-c:v libwebp \
+		-c:v "$webp_encoder" \
 		-q:v 80 \
 		-loop 0 \
 		-an \

scripts/mkv-to-readme-video.test.ts

@@ -0,0 +1,75 @@
+import assert from 'node:assert/strict';
+import fs from 'node:fs';
+import os from 'node:os';
+import path from 'node:path';
+import { spawnSync } from 'node:child_process';
+import test from 'node:test';
+
+function withTempDir<T>(fn: (dir: string) => T): T {
+  const dir = fs.mkdtempSync(path.join(os.tmpdir(), 'subminer-mkv-to-readme-video-test-'));
+  try {
+    return fn(dir);
+  } finally {
+    fs.rmSync(dir, { recursive: true, force: true });
+  }
+}
+
+function writeExecutable(filePath: string, contents: string): void {
+  fs.writeFileSync(filePath, contents, 'utf8');
+  fs.chmodSync(filePath, 0o755);
+}
+
+test('mkv-to-readme-video accepts libwebp_anim when libwebp is unavailable', () => {
+  withTempDir((root) => {
+    const binDir = path.join(root, 'bin');
+    const inputPath = path.join(root, 'sample.mkv');
+    const ffmpegLogPath = path.join(root, 'ffmpeg-args.log');
+
+    fs.mkdirSync(binDir, { recursive: true });
+    fs.writeFileSync(inputPath, 'fake-video', 'utf8');
+
+    writeExecutable(
+      path.join(binDir, 'ffmpeg'),
+      `#!/usr/bin/env bash
+set -euo pipefail
+
+if [[ "$#" -ge 2 && "$1" == "-hide_banner" && "$2" == "-encoders" ]]; then
+  cat <<'EOF'
+ V....D libx264              libx264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (codec h264)
+ V....D libvpx-vp9           libvpx VP9 (codec vp9)
+ V....D libwebp_anim         libwebp WebP image (codec webp)
+ A....D aac                  AAC (Advanced Audio Coding)
+ A....D libopus              libopus Opus (codec opus)
+EOF
+  exit 0
+fi
+
+printf '%s\\n' "$*" >> "${ffmpegLogPath}"
+output=""
+for arg in "$@"; do
+  output="$arg"
+done
+mkdir -p "$(dirname "$output")"
+touch "$output"
+`,
+    );
+
+    const result = spawnSync('bash', ['scripts/mkv-to-readme-video.sh', '--webp', inputPath], {
+      cwd: process.cwd(),
+      env: {
+        ...process.env,
+        PATH: `${binDir}:${process.env.PATH || ''}`,
+      },
+      encoding: 'utf8',
+    });
+
+    assert.equal(result.status, 0, result.stderr || result.stdout);
+    assert.equal(fs.existsSync(path.join(root, 'sample.mp4')), true);
+    assert.equal(fs.existsSync(path.join(root, 'sample.webm')), true);
+    assert.equal(fs.existsSync(path.join(root, 'sample.webp')), true);
+    assert.equal(fs.existsSync(path.join(root, 'sample-poster.jpg')), true);
+
+    const ffmpegLog = fs.readFileSync(ffmpegLogPath, 'utf8');
+    assert.match(ffmpegLog, /-c:v libwebp_anim/);
+  });
+});