Codebase Chore (#28)

This PR 

- cleans up the specs and AI instructions
- update README
- bumped dependencies
- remove redundant defs in xcode scheme

Author: FlickerSoul

.claude/commands/openspec/apply.md

@@ -17,7 +17,7 @@ jobs:
     if: ${{ github.event_name == 'workflow_dispatch' || github.event.workflow_run.conclusion == 'success' }}
     runs-on: macOS-26
     env:
-      DEVELOPER_DIR: "/Applications/Xcode_26.0.app/Contents/Developer"
+      DEVELOPER_DIR: "/Applications/Xcode_26.1.app/Contents/Developer"
     steps:
       - uses: actions/checkout@v6
         with:
@@ -30,4 +30,4 @@ jobs:
           brew install jemalloc
       - name: Run Parsing Benchmarks
         run: |
-          xcrun swift package benchmark --format markdown >> $GITHUB_STEP_SUMMARY
+          xcrun swift package benchmark --no-progress --format markdown >> $GITHUB_STEP_SUMMARY