fix: suppress ty unresolved-import errors for optional UI dependencies

fastapi, uvicorn, and pydantic are optional deps (installed via
ralphify[ui]) so ty can't resolve them in the base environment.
Add ty: ignore[unresolved-import] comments to each affected import.

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

Author: 2 people

src/ralphify/cli.py

@@ -439,7 +439,7 @@ def ui(
     except ImportError:
         rprint("[red]UI deps not installed. Run: pip install ralphify[ui][/red]")
         raise typer.Exit(1)
-    import uvicorn
+    import uvicorn  # ty: ignore[unresolved-import]
 
     rprint(f"[bold]Starting Ralphify UI at http://{host}:{port}[/bold]")
     uvicorn.run(create_app(), host=host, port=port)

src/ralphify/ui/api/primitives.py

@@ -5,7 +5,7 @@
 import shutil
 from pathlib import Path
 
-from fastapi import APIRouter, HTTPException
+from fastapi import APIRouter, HTTPException  # ty: ignore[unresolved-import]
 
 from ralphify._frontmatter import parse_frontmatter
 from ralphify.checks import discover_checks

src/ralphify/ui/api/runs.py

@@ -3,7 +3,7 @@
 
 from pathlib import Path
 
-from fastapi import APIRouter, HTTPException
+from fastapi import APIRouter, HTTPException  # ty: ignore[unresolved-import]
 
 from ralphify.engine import RunConfig
 from ralphify.manager import RunManager

src/ralphify/ui/api/ws.py

@@ -3,7 +3,7 @@
 
 import asyncio
 
-from fastapi import APIRouter, WebSocket, WebSocketDisconnect
+from fastapi import APIRouter, WebSocket, WebSocketDisconnect  # ty: ignore[unresolved-import]
 
 router = APIRouter()
 

src/ralphify/ui/app.py

@@ -5,8 +5,8 @@
 from contextlib import asynccontextmanager
 from pathlib import Path
 
-from fastapi import FastAPI
-from fastapi.staticfiles import StaticFiles
+from fastapi import FastAPI  # ty: ignore[unresolved-import]
+from fastapi.staticfiles import StaticFiles  # ty: ignore[unresolved-import]
 
 from ralphify._events import Event
 from ralphify.manager import RunManager

src/ralphify/ui/models.py

@@ -1,6 +1,6 @@
 """Pydantic models for the REST API."""
 from __future__ import annotations
-from pydantic import BaseModel
+from pydantic import BaseModel  # ty: ignore[unresolved-import]
 
 
 class RunCreate(BaseModel):