style: fix ruff linting errors

Fix all ruff check errors (8 total):
- Remove unused imports (timedelta, Optional, Path)
- Remove unused variable search_queries
- Remove extraneous f-string prefixes (4 occurrences)

All ruff checks now pass.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

Author: jeremyeder

scripts/update_research.py

@@ -10,9 +10,9 @@
 import os
 import re
 import urllib.parse
-from datetime import datetime, timedelta
+from datetime import datetime
 from pathlib import Path
-from typing import Any, Dict, List, Optional
+from typing import Any, Dict, List
 
 import anthropic
 import yaml
@@ -55,13 +55,11 @@ def search_recent_research(
         Returns:
             List of search results with title, url, snippet, date
         """
-        search_queries = [
-            f"{attribute_name} AI assisted development best practices 2025",
-            f"{attribute_name} Claude Code LLM agents",
-            f"{attribute_name} codebase optimization AI tools",
-        ]
-
         # Placeholder: In production, execute actual web searches
+        # Example search queries would be:
+        # - f"{attribute_name} AI assisted development best practices 2025"
+        # - f"{attribute_name} Claude Code LLM agents"
+        # - f"{attribute_name} codebase optimization AI tools"
         # For now, we'll use Claude to generate hypothetical recent research
         results = []
 

src/agentready/assessors/stub_assessors.py

@@ -277,7 +277,6 @@ def assess(self, repository: Repository) -> Finding:
         for ext in extensions:
             pattern = f"**/*{ext}"
             try:
-                from pathlib import Path
 
                 for file_path in repository.path.glob(pattern):
                     if file_path.is_file():

src/agentready/cli/assess_batch.py

@@ -439,12 +439,12 @@ def show_progress(current: int, total: int):
         )
 
         if verbose:
-            click.echo(f"\nGenerating heatmap visualization...")
+            click.echo("\nGenerating heatmap visualization...")
 
         try:
             analyzer = AttributeAnalyzer()
             analyzer.analyze_batch(batch_assessment, heatmap_path)
-            click.echo(f"  ✓ heatmap.html")
+            click.echo("  ✓ heatmap.html")
         except Exception as e:
             click.echo(f"⚠ Warning: Failed to generate heatmap: {e}", err=True)
             if verbose: