feat: enhance agent orchestration, knowledge flow and UI refinements

backend/app/database.py

@@ -40,6 +40,8 @@ async def init_db():
         await ensure_document_columns(conn)
         await ensure_user_columns(conn)
         await ensure_forum_columns(conn)
+        await ensure_agent_columns(conn)
+        await ensure_skill_columns(conn)
 
 
 async def ensure_log_columns(conn):
@@ -139,6 +141,55 @@ async def ensure_forum_columns(conn):
         await conn.execute(text("CREATE INDEX IF NOT EXISTS ix_forum_posts_board ON forum_posts (board)"))
 
 
+async def ensure_agent_columns(conn):
+    rows = await _get_table_info(conn, 'agents')
+    if not rows:
+        return
+
+    columns = {row[1] for row in rows}
+    required_columns = {
+        'selected_skill_ids': "ALTER TABLE agents ADD COLUMN selected_skill_ids JSON DEFAULT '[]' NOT NULL",
+    }
+    for column, ddl in required_columns.items():
+        if column not in columns:
+            await conn.execute(text(ddl))
+
+
+async def ensure_skill_columns(conn):
+    rows = await _get_table_info(conn, 'skills')
+    if not rows:
+        return
+
+    columns = {row[1] for row in rows}
+    required_columns = {
+        'required_context': "ALTER TABLE skills ADD COLUMN required_context JSON DEFAULT '[]' NOT NULL",
+        'output_format': "ALTER TABLE skills ADD COLUMN output_format TEXT",
+        'is_builtin': "ALTER TABLE skills ADD COLUMN is_builtin BOOLEAN DEFAULT 0 NOT NULL",
+        'team_id': "ALTER TABLE skills ADD COLUMN team_id VARCHAR(36)",
+    }
+    for column, ddl in required_columns.items():
+        if column not in columns:
+            await conn.execute(text(ddl))
+
+    await conn.execute(text("UPDATE skills SET agent_type = 'schedule_planner' WHERE agent_type = 'planner'"))
+    builtin_names = [
+        '今日重点拆解',
+        '周计划编排',
+        '时间冲突分析',
+        '任务执行 SOP',
+        '外部交互推进',
+        '知识检索摘要',
+        '图谱沉淀策略',
+        '风险识别模板',
+        '趋势洞察模板',
+    ]
+    for name in builtin_names:
+        await conn.execute(
+            text("UPDATE skills SET is_builtin = 1 WHERE name = :name"),
+            {'name': name},
+        )
+
+
 async def _backfill_usernames(conn):
     result = await conn.execute(text("SELECT id, email, username FROM users ORDER BY created_at, id"))
     users = result.fetchall()