Add workflow_dispatch for manual mutation testing

Adds options to run mutation testing manually with:
- Custom target (e.g., ./internal/reporter/reporter.go)
- Full scan mode (without diff-base)

Enables running complete mutation scans on specific files.

Author: Its-donkey

.github/workflows/ci.yml

@@ -5,6 +5,17 @@ on:
     branches: [main, test]
   pull_request:
     branches: [main, test]
+  workflow_dispatch:
+    inputs:
+      mutation_target:
+        description: 'Target for mutation testing (e.g., ./internal/reporter/reporter.go)'
+        required: false
+        default: './internal/...'
+      full_scan:
+        description: 'Run full scan without diff-base'
+        required: false
+        type: boolean
+        default: false
 
 permissions:
   contents: write
@@ -109,9 +120,16 @@ jobs:
 
       - name: Run mutation testing
         run: |
+          TARGET="${{ inputs.mutation_target || './internal/...' }}"
+          DIFF_BASE_FLAG=""
+          if [ "${{ inputs.full_scan }}" != "true" ]; then
+            DIFF_BASE_FLAG="--diff-base origin/main"
+          fi
+          echo "Running mutation testing on: $TARGET"
+          echo "Full scan mode: ${{ inputs.full_scan || 'false' }}"
           ./mutagoph run \
-            --target ./internal/... \
-            --diff-base origin/main \
+            --target "$TARGET" \
+            $DIFF_BASE_FLAG \
             --mutations mutilated \
             --parallelism mutilated \
             --timeout 5s \