refactor: reorganize Taskiq broker and update imports for clarity

backend/app/worker/broker.py

@@ -0,0 +1,14 @@
+"""Taskiq broker — shared across all task modules."""
+
+from taskiq_redis import ListQueueBroker, RedisAsyncResultBackend
+
+from app.core.config import settings
+
+# Create Taskiq broker with Redis
+broker = ListQueueBroker(
+    url=settings.TASKIQ_BROKER_URL,
+).with_result_backend(
+    RedisAsyncResultBackend(
+        redis_url=settings.TASKIQ_RESULT_BACKEND,
+    )
+)

backend/app/worker/taskiq_app.py

@@ -1,23 +1,17 @@
 """Taskiq application configuration."""
 
 from taskiq import TaskiqScheduler
-from taskiq_redis import ListQueueBroker, RedisAsyncResultBackend
+from taskiq.schedule_sources import LabelScheduleSource
 
-from app.core.config import settings
-
-# Create Taskiq broker with Redis
-broker = ListQueueBroker(
-    url=settings.TASKIQ_BROKER_URL,
-).with_result_backend(
-    RedisAsyncResultBackend(
-        redis_url=settings.TASKIQ_RESULT_BACKEND,
-    )
-)
+from app.worker.broker import broker
+import app.worker.tasks  # noqa: F401 — register @broker.task decorated functions
+import app.worker.tasks.schedules  # noqa: F401 — register scheduled tasks
 
 # Create scheduler for periodic tasks
+# LabelScheduleSource auto-discovers @broker.task(schedule=[...]) decorated functions
 scheduler = TaskiqScheduler(
     broker=broker,
-    sources=["app.worker.tasks.schedules"],
+    sources=[LabelScheduleSource(broker)],
 )
 
 

backend/app/worker/tasks/rag_tasks.py

@@ -6,7 +6,7 @@ import tempfile
 from pathlib import Path
 from typing import Any
 
-from app.worker.taskiq_app import broker
+from app.worker.broker import broker
 
 logger = logging.getLogger(__name__)
 

backend/app/worker/tasks/schedules.py

@@ -1,6 +1,6 @@
 """Taskiq scheduled tasks (cron-like)."""
 
-from app.worker.taskiq_app import broker
+from app.worker.broker import broker
 from app.worker.tasks.rag_tasks import check_scheduled_syncs
 
 

backend/pyproject.toml

@@ -31,7 +31,7 @@ dependencies = [
     "jinja2>=3.1.0",
     "slowapi>=0.1.9",
     "fastapi-pagination>=0.12.31",
-    "taskiq>=0.11.0",
+    "taskiq[reload]>=0.11.0",
     "taskiq-redis>=1.0.0",
     "taskiq-dependencies>=0.1.0",
     # pydantic-deep: deep agentic coding assistant built on pydantic-ai
@@ -39,7 +39,7 @@ dependencies = [
     # pydantic-ai backend with console toolset (StateBackend, LocalBackend)
     "pydantic-ai-backend[console]>=0.2.4",
     # pydantic-ai with web search and fetch support (WebSearch, WebFetch capabilities)
-    "pydantic-ai-slim[duckduckgo,web-fetch]>=1.80.0",
+    "pydantic-ai-slim[duckduckgo,web-fetch,openai]>=1.80.0",
     # Vector store
     "qdrant-client>=1.14.0",
     # Text splitting
@@ -47,7 +47,6 @@ dependencies = [
     # BM25 for hybrid search
     "rank-bm25>=0.2.2",
     # Uses existing openai dependency
-    "sentence-transformers>=3.0.0",
     "pymupdf>=1.25.0",
     "pillow>=10.0.0",
     "python-docx>=1.1.0",
@@ -58,6 +57,9 @@ dependencies = [
     # AntV chart MCP server client (advanced diagrams via mcp-server-chart sidecar).
     # Each framework attaches MCP differently, so the client dep is gated per framework.
     "pydantic-ai-slim[mcp]>=1.80.0",
+    # Cross-encoder reranking for RAG
+    "sentence-transformers>=3.0.0",
+    "torch>=2.0.0",
 ]
 
 [project.optional-dependencies]
@@ -77,6 +79,15 @@ agent_delta = "cli.commands:main"
 requires = ["hatchling"]
 build-backend = "hatchling.build"
 
+[[tool.uv.index]]
+url = "https://download.pytorch.org/whl/cpu"
+
+[[tool.uv.index]]
+url = "https://pypi.org/simple"
+
+[tool.uv]
+index-strategy = "unsafe-best-match"
+
 [tool.hatch.build.targets.wheel]
 packages = ["app", "cli"]