feat(rewrite): bootstrap monorepo Bun + port domain layer ke TypeScript

Mulai migrasi Zesdex dari Rust ke TypeScript/Bun.

- Root workspace package.json, tsconfig strict, bun.lock, gitignore fix
- Paket @zesdex/domain (apps/packages/domain):
  - core: ChatMessage/Conversation/ToolCall/SseParser/repairJson/
    sanitizeToolArguments/UsageStats/Store/DomainError
  - auth: Session/SessionId/SessionLock/OAuth + repository & service interfaces
  - cms: AppConfig/Settings/SettingsPatch/Memory/EditLog + repository &
    service interfaces
  - agent: TurnEvent/SessionRuntime/AgentTurnParams/AgentProgress/prompt
  - subagent & workflow models
- Wire-shape JSON disamakan dengan Rust (serde rename/flatten/skip_if)
- 27 unit test Bun port dari test Rust (SseParser, repair_json, resolve_effective_model, session id)

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

package.json

@@ -0,0 +1,25 @@
+{
+  "name": "zesdex",
+  "version": "1.21.2",
+  "private": true,
+  "type": "module",
+  "packageManager": "bun@1.3.14",
+  "description": "Zesdex — AI-native autonomous coding agent (TypeScript/Bun rewrite of the Rust project)",
+  "license": "MIT",
+  "workspaces": [
+    "apps/packages/*",
+    "apps/interfaces/*"
+  ],
+  "scripts": {
+    "build": "bun run --cwd apps/interfaces/cli build",
+    "check": "tsc --noEmit",
+    "test": "bun test",
+    "format": "bun format",
+    "cli": "bun run --cwd apps/interfaces/cli cli",
+    "bootstrap": "bun run --cwd apps/interfaces/cli bootstrap"
+  },
+  "devDependencies": {
+    "@types/bun": "^1.2.0",
+    "typescript": "^5.7.0"
+  }
+}