feat: 0.2.27 - 抽离数据库基础设施模块

- 新增 ias-db crate，集中管理 PostgreSQL 连接池和 SQLx 迁移
- 迁移 ias-service/migrations 到 ias-db/migrations
- ias-main 改用 ias_db::connect_db()，ias-service 只接 PgPool
- 新增操作日志 HTTP 查询接口 (GET /v1/logs, GET /v1/logs/{id})
- 新增操作日志 Web 前端页面，支持按级别/模块/关键词筛选
- 消息队列关键节点增加操作日志写入
- ias-mail 新增 mark_remote_message_seen，IMAP 已读同步
- 工作流配置加载改为文件级容错 (load_configs_with_warnings)
- ias-context 工具调用说明更新为 query_api_docs + call_http_api
- 新增高德地图地理编码 HTTP 能力配置

模块版本: ias-db 0.1.0, ias-ai 0.1.14, ias-context 0.1.6, ias-http 0.1.15, ias-mail 0.1.16, ias-service 0.1.25, ias-main 0.2.27

ias-db/migrations/20260706013000_create_upgrade_logs.sql

@@ -0,0 +1,62 @@
+CREATE TABLE ias_upgrade_logs (
+    id BIGSERIAL PRIMARY KEY,
+    version VARCHAR(64) NOT NULL UNIQUE,
+    released_at TIMESTAMPTZ NOT NULL,
+    title VARCHAR(255) NOT NULL,
+    description TEXT NOT NULL,
+    changes JSONB NOT NULL DEFAULT '[]'::jsonb,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX idx_ias_upgrade_logs_released
+    ON ias_upgrade_logs(released_at DESC);
+
+INSERT INTO ias_upgrade_logs (
+    version,
+    released_at,
+    title,
+    description,
+    changes
+) VALUES (
+    '0.1.1',
+    '2026-07-06T00:00:00+08:00',
+    'Context management and startup notices',
+    'Added standalone context management, memory tooling, session summaries, LLM response compatibility, startup online notices, and initial version/changelog files.',
+    '[
+        "Added the standalone Rust context module for long-term memories, session context, session summaries, and recent-week summaries.",
+        "Added timestamped memory records and context APIs for querying, creating, updating, and deleting memories.",
+        "Added context-window rollover rules for /new, two-hour inactivity, and token-limit thresholds.",
+        "Added automatic session summary generation when a new context is opened.",
+        "Added memory tools so the assistant can query and update user memories during conversation.",
+        "Fixed LLM response parsing so router responses without service_tier are accepted.",
+        "Added startup online notices so users receive a friendly message after the service comes back online.",
+        "Added the project version file and changelog, and documented the version/changelog rule."
+    ]'::jsonb
+) ON CONFLICT (version) DO UPDATE SET
+    released_at = EXCLUDED.released_at,
+    title = EXCLUDED.title,
+    description = EXCLUDED.description,
+    changes = EXCLUDED.changes;
+
+INSERT INTO ias_upgrade_logs (
+    version,
+    released_at,
+    title,
+    description,
+    changes
+) VALUES (
+    '0.1.2',
+    '2026-07-06T00:00:00+08:00',
+    'Persisted upgrade logs and Codex rules',
+    'Added persisted upgrade records and clarified that version/changelog rules must live in the AGENTS.md file Codex reads for the current context.',
+    '[
+        "Added the ias_upgrade_logs database table for persisted upgrade records.",
+        "Added migration-seeded upgrade records for versions 0.1.1 and 0.1.2.",
+        "Updated Codex project rules in AGENTS.md so version bumps update VERSION, crate versions, CHANGELOG.md, and database upgrade records together.",
+        "Clarified that project rules should live in the AGENTS.md file Codex actually reads for the current context."
+    ]'::jsonb
+) ON CONFLICT (version) DO UPDATE SET
+    released_at = EXCLUDED.released_at,
+    title = EXCLUDED.title,
+    description = EXCLUDED.description,
+    changes = EXCLUDED.changes;