feat: add 10 agents, fix renamed slugs, add GitHub Pages dashboard (#5)

- Add pi, OpenHands, warp, gpt-pilot, qwen-code, kilocode, onlook,
  dyad, trae-agent, copilot-cli (19 -> 29 tracked repos)
- Update renamed slugs to canonical owners (anomalyco/opencode,
  aaif-goose/goose, AntonOsika/gpt-engineer) with history key
  migrations so star deltas survive the rename
- Generate site/data.json each run and deploy site/ (interactive
  table + star-history chart) to GitHub Pages from the daily
  workflow, since GITHUB_TOKEN bot pushes cannot trigger a separate
  Pages workflow

.github/workflows/update.yml

@@ -18,6 +18,10 @@ permissions:
   # on the auto-commit ("chore: daily ranking refresh") because GITHUB_TOKEN-authored
   # pushes do NOT re-trigger workflows, whereas a PAT would.
   contents: write
+  # Pages deploy happens in THIS workflow (a separate push-triggered Pages
+  # workflow would never fire — see GITHUB_TOKEN note above).
+  pages: write
+  id-token: write
 
 concurrency:
   group: update-rankings
@@ -26,6 +30,9 @@ concurrency:
 jobs:
   update:
     runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deploy.outputs.page_url }}
     steps:
       - uses: actions/checkout@v4
 
@@ -76,3 +83,19 @@ jobs:
             GIT_EDITOR=true git rebase --continue
           done
           exit 1
+
+      # site/data.json was generated by the updater run above; deploy the
+      # static dashboard (site/) to GitHub Pages every run.
+      - name: Configure Pages
+        uses: actions/configure-pages@v5
+        with:
+          enablement: true
+
+      - name: Upload Pages artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: site
+
+      - name: Deploy to GitHub Pages
+        id: deploy
+        uses: actions/deploy-pages@v4