fix: resolve all mypy type checking errors

- Fix importlib_resources import type ignore comments
- Update _evaluate_coding_plan function signature to accept list[str] for research_urls
- All type checking, linting, formatting, and tests now pass locally:
  ✅ mypy src - Success: no issues found
  ✅ ruff check src tests - All checks passed
  ✅ ruff format --check - 12 files already formatted
  ✅ pytest - 41/41 tests passing

Author: Zvi Fried

src/mcp_as_a_judge/prompt_loader.py

@@ -7,7 +7,7 @@
     from importlib.resources import files
 except ImportError:
     # Python < 3.9 fallback
-    from importlib_resources import files  # type: ignore[import-untyped]
+    from importlib_resources import files  # type: ignore[import-not-found,no-redef]
 
 from jinja2 import Environment, FileSystemLoader, Template
 from mcp.types import SamplingMessage, TextContent

src/mcp_as_a_judge/server.py

@@ -255,7 +255,7 @@ async def elicit_missing_requirements(
 
 async def _validate_research_quality(
     research: str,
-    research_urls: str,
+    research_urls: list[str],
     plan: str,
     design: str,
     user_requirements: str,
@@ -372,7 +372,7 @@ async def _evaluate_coding_plan(
     plan: str,
     design: str,
     research: str,
-    research_urls: str,
+    research_urls: list[str],
     user_requirements: str,
     context: str,
     ctx: Context,