feat(icon): Notion-style icon picker + custom workspace emojis; fix side peek file content & ctx menu overflow

app/main.py

@@ -38,6 +38,7 @@ from app.routers import (
 )
 from app.routers.automations import router as automations_router
 from app.routers.collaboration import router as collaboration_router
+from app.routers.emoji import router as emoji_router
 from app.routers.gitea import router as gitea_router
 from app.routers.github_routes import router as github_router
 from app.routers.notifications import router as notifications_router
@@ -134,6 +135,7 @@ app.include_router(export.router)
 app.include_router(notifications_router)
 app.include_router(automations_router)
 app.include_router(collaboration_router)
+app.include_router(emoji_router)
 app.include_router(realtime_router)
 app.include_router(agent.router)
 app.include_router(search.router)