feat: 完成 B 群組 — 資料層與核心領域模型

- 導入 Prisma 7.9.1 + SQLite（better-sqlite3 driver adapter），prisma.config.ts 管理連線設定
- 完整資料模型：User／Work／Character／CharacterAlias／EpisodicMemory／SemanticMemory／
  ProceduralRule／EmotionState／Relationship／SentimentLedgerEntry
- packages/db：Prisma Client 存取層（ESM，因 Prisma 7 產出的 generated client 僅支援 ESM）
- apps/api 隨之改為 ESM 以相容 packages/db
- packages/shared：新增角色／記憶／情緒／關係共用型別，api 與 web 皆從此匯入
- prisma/seed.ts：建立測試使用者與元氣型測試角色，含完整關係帳本與記憶種子資料
- apps/api：新增 GET /characters
- scripts/smoke/B.mjs：驗證資料表齊全、API 讀出種子角色、關係與記憶可寫入讀出
- 保留 Prisma 官方隨 CLI 附的 agent skill 文件（.agents/skills 等），供後續群組查閱

npm run restart && npm run smoke -- B 皆通過（B-V），A 群組冒煙測試無回歸。

.agents/skills/prisma-cli/references/debug.md

@@ -0,0 +1,46 @@
+# prisma debug
+
+Prints information helpful for debugging and bug reports.
+
+## Command
+
+```bash
+prisma debug [options]
+```
+
+## What It Does
+
+Outputs details about your Prisma environment, including:
+- Prisma CLI version
+- Prisma Client version (if installed)
+- Engine binaries (Query Engine, Migration Engine, etc.)
+- Platform information (OS, Architecture)
+- Node.js version
+- Configured datasource provider
+
+## Options
+
+| Option | Description |
+|--------|-------------|
+| `--schema` | Path to schema file |
+| `--config` | Custom path to your Prisma config file |
+
+## Example Output
+
+```
+prisma               : 7.3.0
+@prisma/client       : 7.3.0
+Operating System     : darwin
+Architecture         : arm64
+Node.js              : v20.10.0
+TypeScript           : 5.3.3
+Query Compiler       : enabled
+PSL                  : ...
+Schema Engine        : ...
+```
+
+## When to Use
+
+- **Troubleshooting**: Checking version mismatches
+- **Reporting Issues**: Including environment info in GitHub issues
+- **Verifying Installation**: Ensuring correct binaries are downloaded