feat(stats): add launcher stats command and build integration

- Launcher stats subcommand with cleanup mode
- Stats frontend build integrated into Makefile
- CI workflow updated for stats package
- Config example updated with stats section
- mpv plugin menu entry for stats toggle

package.json

@@ -13,7 +13,9 @@
     "test-yomitan-parser:electron": "bun run build:yomitan && bun build scripts/test-yomitan-parser.ts --format=cjs --target=node --outfile dist/scripts/test-yomitan-parser.js --external electron && electron dist/scripts/test-yomitan-parser.js",
     "build:yomitan": "bun scripts/build-yomitan.mjs",
     "build:assets": "bun scripts/prepare-build-assets.mjs",
-    "build": "bun run build:yomitan && tsc -p tsconfig.json && bun run build:renderer && bun run build:assets",
+    "build:stats": "cd stats && bun run build",
+    "dev:stats": "cd stats && bun run dev",
+    "build": "bun run build:yomitan && bun run build:stats && tsc -p tsconfig.json && bun run build:renderer && bun run build:assets",
     "build:renderer": "esbuild src/renderer/renderer.ts --bundle --platform=browser --format=esm --target=es2022 --outfile=dist/renderer/renderer.js --sourcemap",
     "changelog:build": "bun run scripts/build-changelog.ts build",
     "changelog:check": "bun run scripts/build-changelog.ts check",
@@ -28,6 +30,7 @@
     "docs:build": "bun run --cwd docs-site docs:build",
     "docs:preview": "bun run --cwd docs-site docs:preview",
     "docs:test": "bun run --cwd docs-site test",
+    "test:docs:kb": "bun test scripts/docs-knowledge-base.test.ts",
     "test:config:src": "bun test src/config/config.test.ts src/config/path-resolution.test.ts src/config/resolve/anki-connect.test.ts src/config/resolve/subtitle-style.test.ts src/config/resolve/jellyfin.test.ts src/config/definitions/domain-registry.test.ts src/generate-config-example.test.ts src/verify-config-example.test.ts",
     "test:config:dist": "bun test dist/config/config.test.js dist/config/path-resolution.test.js dist/config/resolve/anki-connect.test.js dist/config/resolve/subtitle-style.test.js dist/config/resolve/jellyfin.test.js dist/config/definitions/domain-registry.test.js dist/generate-config-example.test.js dist/verify-config-example.test.js",
     "test:config:smoke:dist": "bun test dist/config/path-resolution.test.js",
@@ -54,7 +57,7 @@
     "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 scripts/mkv-to-readme-video.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 run test:docs:kb && 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 src/generate-config-example.ts",
     "verify:config-example": "bun run src/verify-config-example.ts",
     "start": "bun run build && electron . --start",
@@ -81,9 +84,11 @@
   "author": "",
   "license": "GPL-3.0-or-later",
   "dependencies": {
+    "@hono/node-server": "^1.19.11",
     "axios": "^1.13.5",
     "commander": "^14.0.3",
     "discord-rpc": "^4.0.1",
+    "hono": "^4.12.7",
     "jsonc-parser": "^3.3.1",
     "libsql": "^0.5.22",
     "ws": "^8.19.0"
@@ -147,6 +152,7 @@
     },
     "files": [
       "dist/**/*",
+      "stats/dist/**/*",
       "vendor/texthooker-ui/docs/**/*",
       "vendor/texthooker-ui/package.json",
       "package.json",