feat: M4 文风 + M5 生成/多provider/Skill + Kimi Code 订阅接入 + 本地联调修复

M4（文风）: style-auditor 双轨（提取指纹/漂移第四审）+ jobs 长任务框架(zombie reaper) + 回炉 refine + GET /style read-back。
M5（生成+扩展）: worldbuilder/character-gen（入库 continuity 409 gate + partition_writes 白名单 + schema→JSONB 形变）；
  网关多 provider 回退链/熔断/能力降级（Anthropic/Gemini 适配器）；Skill registry + 表权限沙箱 + 规则；
  前端 角色生成器/世界观/Codex/规则页/技能库/⌘K 命令面板。
K1（Kimi Code 订阅接入）: OAuth device-flow（kimi-code）+ 静态 Console key（kimi-code-key）两路径；
  coding 端点 KimiCLI 伪造头（实测 UA allow-list 门禁，缺则 403）+ JSON 模式结构化（thinking ⊥ tool_choice）。
本地联调修复: CORS 中间件；assemble 注入 premise+「写第N章」指令（修空 prompt 400）；
  GET /outline·/draft read-back + 大纲/工作台/审稿页重载；写页 client/server 常量边界 + notFound 健壮化；
  字数 toLocaleString locale 水合；审稿页终稿从已存草稿 seed（修 accept 422）。
门禁: backend ruff/mypy(157)/alembic 无漂移/pytest 451 · frontend lint/tsc/vitest/build。

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

packages/agents/ww_agents/__init__.py

@@ -6,6 +6,9 @@
 from __future__ import annotations
 
 from .schemas import (
+    CharacterCard,
+    CharacterGenResult,
+    CharacterRelation,
     Conflict,
     ConflictType,
     ContinuityReview,
@@ -16,17 +19,31 @@ from .schemas import (
     OutlineResult,
     PaceIssue,
     PaceReview,
+    StyleDimension,
+    StyleDriftReview,
+    StyleDriftSegment,
+    StyleFingerprintResult,
+    WorldEntityCard,
+    WorldGenResult,
 )
 from .specs import (
     AgentSpec,
+    character_gen_spec,
     continuity_spec,
     foreshadow_spec,
     outliner_spec,
     pace_spec,
+    refiner_spec,
+    style_drift_spec,
+    style_extract_spec,
+    worldbuilder_spec,
 )
 
 __all__ = [
     "AgentSpec",
+    "CharacterCard",
+    "CharacterGenResult",
+    "CharacterRelation",
     "Conflict",
     "ConflictType",
     "ContinuityReview",
@@ -37,8 +54,19 @@ __all__ = [
     "OutlineResult",
     "PaceIssue",
     "PaceReview",
+    "StyleDimension",
+    "StyleDriftReview",
+    "StyleDriftSegment",
+    "StyleFingerprintResult",
+    "WorldEntityCard",
+    "WorldGenResult",
+    "character_gen_spec",
     "continuity_spec",
     "foreshadow_spec",
     "outliner_spec",
     "pace_spec",
+    "refiner_spec",
+    "style_drift_spec",
+    "style_extract_spec",
+    "worldbuilder_spec",
 ]