Merge staging into main (#3)

* feat(engine): Architect agent + cross-scene StoryState coherence

Add a dedicated Architect LLM call at session start that expands the terse
world/style prompt into a persistent story bible (logline, genre, second-
person protagonist, cast, engineered opening hook). The bible seeds a
StoryState the Writer reads and patches every scene, carried + merged
across cuts (applyStoryStatePatch) so the story keeps a spine from beat
one instead of jumping between scenes.

- prompts: inject web-novel / short-drama / galgame craft into Writer +
  Architect; Writer emits storyStatePatch to update the running bible
- director: parallelize voice + non-entry portraits with the Painter
  (only entry-beat portraits block paint) to offset Architect latency
- architect: chat/parse guarded so a malformed response never aborts start
- types: StoryState / StoryStatePatch; required on Start/SceneResponse

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* docs: add AGPL-3.0 license, README i18n, and TTS accuracy fix (#2)

* docs: add AGPL-3.0 license, README i18n, and TTS accuracy fix

- LICENSE: add GNU AGPL v3 with InfiPlot copyright notice
- README.md: rewrite for open-source project, fix TTS description
  (TTS uses MiMo's own protocol, not OpenAI-compatible)
- README.zh-CN.md: add Simplified Chinese translation
- README.ja.md: add Japanese translation
- package.json: change license from UNLICENSED to AGPL-3.0-only

* fix: address Copilot review — .env.example TTS comment, zh-CN formatting

- .env.example: clarify TTS uses MiMo's own protocol, not OpenAI-compatible
- README.md: 'land paper after paper' → 'publish paper after paper'
- README.zh-CN.md: add spaces around '5 月', fix code formatting
  for model names (deepseek-v4-flash)

---------

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

package.json

@@ -3,7 +3,7 @@
   "version": "0.1.0",
   "private": true,
   "description": "AI 实时交互剧情游戏",
-  "license": "UNLICENSED",
+  "license": "AGPL-3.0-only",
   "packageManager": "pnpm@9.12.0",
   "engines": {
     "node": ">=20"