feat(test): B5 整合測試框架 — 真實 DB, 5/5 通過

新增:
- docker-compose.test.yml: CI 用臨時 pgvector PostgreSQL (port 15432)
- tests/factories.py: Incident/Approval/Knowledge/RAG 測試資料工廠
- tests/integration/test_b5_core_flows.py: 5 個 E2E 整合測試 (5/5 PASSED 1.03s)
- tests/integration/setup_test_schema.sql: CI schema 初始化 SQL
- cd.yaml: 新增 Integration Tests B5 step
- scripts/sync_dev_db.py: dev DB 同步工具

修正:
- .env.test: DATABASE_URL 指向 awoooi_dev (本機設定, gitignore 不入庫)

禁止 Mock 鐵律: 所有 DB 測試使用真實 PostgreSQL, 無 SQLite/MagicMock

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

apps/api/tests/integration/setup_test_schema.sql

@@ -0,0 +1,106 @@
+-- Integration Test Schema Setup
+-- ================================
+-- 為 CI 環境的臨時 PostgreSQL 建立測試所需的 schema
+-- 使用: psql $TEST_DATABASE_URL -f setup_test_schema.sql
+-- 2026-04-10 Claude Sonnet 4.6 Asia/Taipei
+
+CREATE EXTENSION IF NOT EXISTS vector;
+
+DO $$ BEGIN
+  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'incidentstatus') THEN
+    CREATE TYPE incidentstatus AS ENUM ('INVESTIGATING','MITIGATING','RESOLVED','CLOSED','ESCALATED');
+  END IF;
+  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'severity') THEN
+    CREATE TYPE severity AS ENUM ('P0','P1','P2','P3');
+  END IF;
+  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'approvalstatus') THEN
+    CREATE TYPE approvalstatus AS ENUM ('PENDING','APPROVED','REJECTED','EXPIRED','EXECUTION_SUCCESS','EXECUTION_FAILED');
+  END IF;
+  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'risklevel') THEN
+    CREATE TYPE risklevel AS ENUM ('LOW','MEDIUM','HIGH','CRITICAL');
+  END IF;
+  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'entrysource') THEN
+    CREATE TYPE entrysource AS ENUM ('AI_EXTRACTED','HUMAN');
+  END IF;
+  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'entrystatus') THEN
+    CREATE TYPE entrystatus AS ENUM ('DRAFT','REVIEW','APPROVED','ARCHIVED','published');
+  END IF;
+  IF NOT EXISTS (SELECT 1 FROM pg_type WHERE typname = 'entrytype') THEN
+    CREATE TYPE entrytype AS ENUM ('INCIDENT_CASE','RUNBOOK','BEST_PRACTICE','POSTMORTEM','auto_runbook','anti_pattern');
+  END IF;
+END $$;
+
+CREATE TABLE IF NOT EXISTS incidents (
+    incident_id VARCHAR(30) PRIMARY KEY,
+    status incidentstatus NOT NULL DEFAULT 'INVESTIGATING',
+    severity severity NOT NULL DEFAULT 'P2',
+    signals JSON DEFAULT '[]',
+    affected_services JSON DEFAULT '[]',
+    decision_chain JSON DEFAULT '[]',
+    proposal_ids JSON DEFAULT '[]',
+    outcome JSON DEFAULT '{}',
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    resolved_at TIMESTAMPTZ,
+    closed_at TIMESTAMPTZ,
+    ttl_days INTEGER DEFAULT 30,
+    vectorized BOOLEAN DEFAULT false
+);
+
+CREATE TABLE IF NOT EXISTS approval_records (
+    id VARCHAR(36) PRIMARY KEY,
+    action VARCHAR(500) NOT NULL,
+    description TEXT NOT NULL,
+    status approvalstatus NOT NULL DEFAULT 'PENDING',
+    risk_level risklevel NOT NULL,
+    required_signatures INTEGER DEFAULT 1,
+    current_signatures INTEGER DEFAULT 0,
+    signatures JSON DEFAULT '[]',
+    blast_radius JSON DEFAULT '{}',
+    dry_run_checks JSON DEFAULT '[]',
+    requested_by VARCHAR,
+    rejection_reason TEXT,
+    extra_metadata JSON DEFAULT '{}',
+    fingerprint VARCHAR,
+    hit_count INTEGER DEFAULT 1,
+    last_seen_at TIMESTAMPTZ,
+    approval_level VARCHAR DEFAULT 'standard',
+    approval_votes JSONB,
+    required_votes INTEGER DEFAULT 1,
+    incident_id VARCHAR,
+    telegram_message_id INTEGER,
+    telegram_chat_id INTEGER,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    expires_at TIMESTAMPTZ,
+    resolved_at TIMESTAMPTZ
+);
+
+CREATE TABLE IF NOT EXISTS knowledge_entries (
+    id VARCHAR(36) PRIMARY KEY,
+    title VARCHAR NOT NULL,
+    content TEXT,
+    entry_type entrytype NOT NULL,
+    category VARCHAR,
+    tags JSON DEFAULT '[]',
+    source entrysource NOT NULL DEFAULT 'HUMAN',
+    status entrystatus NOT NULL DEFAULT 'DRAFT',
+    related_incident_id VARCHAR,
+    related_playbook_id VARCHAR,
+    symptoms_hash VARCHAR,
+    view_count INTEGER DEFAULT 0,
+    created_by VARCHAR,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE TABLE IF NOT EXISTS rag_chunks (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    source TEXT NOT NULL,
+    source_id TEXT NOT NULL,
+    title TEXT,
+    chunk_text TEXT NOT NULL,
+    embedding vector(768),
+    metadata JSONB DEFAULT '{}',
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);