docs(superpowers): local-first LLM routing implementation plan

10-task plan with TDD steps, exact file paths, and code blocks for each
step. Self-reviewed for spec coverage and type consistency. Ready for
subagent-driven execution.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

.github/workflows/scorecard.yml

@@ -57,6 +57,6 @@ jobs:
           publish_results: true
 
       - name: Upload SARIF to code-scanning
-        uses: github/codeql-action/upload-sarif@v4
+        uses: github/codeql-action/upload-sarif@v3
         with:
           sarif_file: results.sarif

.github/workflows/semgrep.yml

@@ -47,7 +47,7 @@ jobs:
 
       - name: Upload SARIF (when present)
         if: hashFiles('semgrep.sarif') != ''
-        uses: github/codeql-action/upload-sarif@v4
+        uses: github/codeql-action/upload-sarif@v3
         with:
           sarif_file: semgrep.sarif
           category: semgrep