fix: resolve linter errors and optimize CI worker builds

- Remove unused Literal import from backend findings model
- Remove unnecessary f-string prefixes in CLI findings command
- Optimize GitHub Actions to build only modified workers
  - Detect specific worker changes (python, secrets, rust, android, ossfuzz)
  - Build only changed workers instead of all 5
  - Build all workers if docker-compose.yml changes
  - Significantly reduces CI build time

.github/workflows/test.yml

@@ -26,7 +26,7 @@ jobs:
         with:
           fetch-depth: 0  # Fetch all history for proper diff
 
-      - name: Check if workers were modified
+      - name: Check which workers were modified
         id: check-workers
         run: |
           if [ "${{ github.event_name }}" == "pull_request" ]; then
@@ -34,22 +34,54 @@ jobs:
             CHANGED_FILES=$(git diff --name-only origin/${{ github.base_ref }}...HEAD)
             echo "Changed files:"
             echo "$CHANGED_FILES"
-
-            if echo "$CHANGED_FILES" | grep -q "^workers/\|^docker-compose.yml"; then
-              echo "workers_modified=true" >> $GITHUB_OUTPUT
-              echo "✅ Workers or docker-compose.yml modified - will build"
-            else
-              echo "workers_modified=false" >> $GITHUB_OUTPUT
-              echo "⏭️  No worker changes detected - skipping build"
-            fi
           else
             # For direct pushes, check last commit
             CHANGED_FILES=$(git diff --name-only HEAD~1 HEAD)
-            if echo "$CHANGED_FILES" | grep -q "^workers/\|^docker-compose.yml"; then
-              echo "workers_modified=true" >> $GITHUB_OUTPUT
-            else
-              echo "workers_modified=false" >> $GITHUB_OUTPUT
-            fi
+          fi
+
+          # Check if docker-compose.yml changed (build all workers)
+          if echo "$CHANGED_FILES" | grep -q "^docker-compose.yml"; then
+            echo "workers_to_build=worker-python worker-secrets worker-rust worker-android worker-ossfuzz" >> $GITHUB_OUTPUT
+            echo "workers_modified=true" >> $GITHUB_OUTPUT
+            echo "✅ docker-compose.yml modified - building all workers"
+            exit 0
+          fi
+
+          # Detect which specific workers changed
+          WORKERS_TO_BUILD=""
+
+          if echo "$CHANGED_FILES" | grep -q "^workers/python/"; then
+            WORKERS_TO_BUILD="$WORKERS_TO_BUILD worker-python"
+            echo "✅ Python worker modified"
+          fi
+
+          if echo "$CHANGED_FILES" | grep -q "^workers/secrets/"; then
+            WORKERS_TO_BUILD="$WORKERS_TO_BUILD worker-secrets"
+            echo "✅ Secrets worker modified"
+          fi
+
+          if echo "$CHANGED_FILES" | grep -q "^workers/rust/"; then
+            WORKERS_TO_BUILD="$WORKERS_TO_BUILD worker-rust"
+            echo "✅ Rust worker modified"
+          fi
+
+          if echo "$CHANGED_FILES" | grep -q "^workers/android/"; then
+            WORKERS_TO_BUILD="$WORKERS_TO_BUILD worker-android"
+            echo "✅ Android worker modified"
+          fi
+
+          if echo "$CHANGED_FILES" | grep -q "^workers/ossfuzz/"; then
+            WORKERS_TO_BUILD="$WORKERS_TO_BUILD worker-ossfuzz"
+            echo "✅ OSS-Fuzz worker modified"
+          fi
+
+          if [ -z "$WORKERS_TO_BUILD" ]; then
+            echo "workers_modified=false" >> $GITHUB_OUTPUT
+            echo "⏭️  No worker changes detected - skipping build"
+          else
+            echo "workers_to_build=$WORKERS_TO_BUILD" >> $GITHUB_OUTPUT
+            echo "workers_modified=true" >> $GITHUB_OUTPUT
+            echo "Building workers:$WORKERS_TO_BUILD"
           fi
 
       - name: Set up Docker Buildx
@@ -59,8 +91,9 @@ jobs:
       - name: Build worker images
         if: steps.check-workers.outputs.workers_modified == 'true'
         run: |
-          echo "Building worker Docker images..."
-          docker compose build worker-python worker-secrets worker-rust worker-android worker-ossfuzz --no-cache
+          WORKERS="${{ steps.check-workers.outputs.workers_to_build }}"
+          echo "Building worker Docker images: $WORKERS"
+          docker compose build $WORKERS --no-cache
         continue-on-error: false
 
   lint:

backend/src/models/findings.py

@@ -14,7 +14,7 @@ Models for workflow findings and submissions
 # Additional attribution and requirements are provided in the NOTICE file.
 
 from pydantic import BaseModel, Field
-from typing import Dict, Any, Optional, Literal, List
+from typing import Dict, Any, Optional, List
 from datetime import datetime
 
 

cli/src/fuzzforge_cli/commands/findings.py

@@ -253,15 +253,15 @@ def display_finding_detail(finding: Dict[str, Any], tool: Dict[str, Any], run_id
     content_lines.append(f"[bold]Tool:[/bold] {tool.get('name', 'Unknown')} v{tool.get('version', 'unknown')}")
     content_lines.append(f"[bold]Run ID:[/bold] {run_id}")
     content_lines.append("")
-    content_lines.append(f"[bold]Summary:[/bold]")
+    content_lines.append("[bold]Summary:[/bold]")
     content_lines.append(message_text)
     content_lines.append("")
-    content_lines.append(f"[bold]Description:[/bold]")
+    content_lines.append("[bold]Description:[/bold]")
     content_lines.append(message_markdown)
 
     if code_snippet:
         content_lines.append("")
-        content_lines.append(f"[bold]Code Snippet:[/bold]")
+        content_lines.append("[bold]Code Snippet:[/bold]")
         content_lines.append(f"[dim]{code_snippet}[/dim]")
 
     content = "\n".join(content_lines)
@@ -270,7 +270,7 @@ def display_finding_detail(finding: Dict[str, Any], tool: Dict[str, Any], run_id
     console.print()
     console.print(Panel(
         content,
-        title=f"🔍 Finding Detail",
+        title="🔍 Finding Detail",
         border_style=severity_color,
         box=box.ROUNDED,
         padding=(1, 2)