Deploy docs to GitHub Pages on release

[EiffL]

Summary

Split out from #168 so the deployment switch can land (and current-main docs can be redeployed) independently of the CLI changes.

• Release-gated deploys: docs-deploy.yml now triggers on release: published — the same moment as the PyPI publish — instead of every push to main, so docs.lightconeresearch.org never documents behavior pip install lightcone-cli can't deliver yet. workflow_dispatch remains for manual intermediate deploys (typo fixes, clarifications) from the Actions tab.
• One hosting target: consolidates on GitHub Pages. wrangler.jsonc (added by the Cloudflare bot's autoconfig PR Add Cloudflare Workers configuration #118, not a design decision) is deleted; the Cloudflare Workers deployment retires.
• check-docs.yml is untouched: docs are still build-validated on every merged PR — they just don't ship until a release or a manual dispatch.

Manual follow-ups (dashboard-side, can't be done from the repo)

1. Cloudflare: disconnect this repo from Workers Builds and retire the lightcone-cli worker.
2. Cloudflare DNS: CNAME docs.lightconeresearch.org → lightconeresearch.github.io (DNS-only while GitHub validates).
3. GitHub Pages settings: set the custom domain, then enable Enforce HTTPS.

After merging, run the workflow once manually to deploy current main to Pages.

Test plan

• Docs build (zensical build) unchanged and green
• Workflow YAML: triggers are release: published + workflow_dispatch; build/deploy jobs otherwise identical to what ran before

🤖 Generated with Claude Code

https://claude.ai/code/session_016EL5bESx3CqfMNZNPA1KHJ

[github-actions]

❌ Eval Results

Metric	Value
Score	0.00
Build complete	❌
Cost	$0.00
Turns	0
Duration	0s
lightcone-cli	0.4.1.dev3+g0013cc284 (0013cc28)
Results	Download

Graders

No grader results

Full output

      ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/runner/work/lightcone-cli/lightcone-cli/.venv/lib/python3.12/site-packages/daytona_api_client/exceptions.py", line 148, in from_response
    raise ForbiddenException(http_resp=http_resp, body=body, data=data)
daytona_api_client.exceptions.ForbiddenException: (403)
Reason: Forbidden
HTTP response headers: HTTPHeaderDict({'Content-Type': 'application/json; charset=utf-8', 'Content-Length': '155', 'Connection': 'keep-alive', 'Date': 'Tue, 11 Aug 2026 19:36:15 GMT', 'ETag': 'W/"9b-GgpkUcUKsBh0guUYMtNjGykO3tk"', 'X-Powered-By': 'Express', 'Vary': 'Origin', 'X-Daytona-Api-Version': 'v0.204.0', 'X-RateLimit-Limit-sandbox-create': '600', 'X-RateLimit-Remaining-sandbox-create': '599', 'X-RateLimit-Reset-sandbox-create': '60', 'X-Cache': 'Error from cloudfront', 'Via': '1.1 4d8557db96ea368b1ae853af3db8c604.cloudfront.net (CloudFront)', 'X-Amz-Cf-Pop': 'IAD61-P5', 'X-Amz-Cf-Id': 'zqFKZZuw-zsgHtlD4g8ZRYapQQpv4liTxE4PyM9ldGB1mi5JUXKNyA==', 'X-Frame-Options': 'DENY', 'Referrer-Policy': 'strict-origin-when-cross-origin', 'Content-Security-Policy': "frame-ancestors 'none'", 'X-Content-Type-Options': 'nosniff', 'Strict-Transport-Security': 'max-age=31536000; includeSubDomains; preload'})
HTTP response body: {"path":"/api/sandbox","timestamp":"2026-08-11T19:36:15.052Z","statusCode":403,"error":"Forbidden","message":"Organization is suspended: Depleted credits"}


The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/home/runner/work/lightcone-cli/lightcone-cli/src/lightcone/eval/harness.py", line 112, in run_trial
    sandbox.create()
  File "/home/runner/work/lightcone-cli/lightcone-cli/src/lightcone/eval/sandbox.py", line 149, in create
    self._sandbox = self._daytona.create(
                    ^^^^^^^^^^^^^^^^^^^^^
  File "/home/runner/work/lightcone-cli/lightcone-cli/.venv/lib/python3.12/site-packages/daytona_sdk/_utils/errors.py", line 224, in sync_wrapper
    process_n_raise_exception(e)
  File "/home/runner/work/lightcone-cli/lightcone-cli/.venv/lib/python3.12/site-packages/daytona_sdk/_utils/errors.py", line 156, in process_n_raise_exception
    raise create_daytona_error(
daytona_sdk.common.errors.DaytonaForbiddenError: Failed to create sandbox: Organization is suspended: Depleted credits
  snae trial 0: score=0.00 error: Failed to create sandbox: Organization is 
suspended: Deplete

lightcone-cli: 0.4.1.dev3+g0013cc284 (HEAD 0013cc28)
ASTRA: 0.2.11

  Eval Results: Scores  
┏━━━━━━┳━━━━━━━━━━━━━━━┓
┃ Task ┃     Score     ┃
┡━━━━━━╇━━━━━━━━━━━━━━━┩
│ snae │ 0.00 +/- 0.00 │
│      │  pass@k: 0%   │
│      │   1 errors    │
└──────┴───────────────┘

   Eval Results: Cost &   
         Duration         
┏━━━━━━┳━━━━━━━━━━━━━━━━━┓
┃ Task ┃ Cost / Duration ┃
┡━━━━━━╇━━━━━━━━━━━━━━━━━┩
│ snae │      $0.00      │
│      │       0s        │
└──────┴─────────────────┘

Total: 1 trials, $0.00, 0s

Results saved to: eval-results/build-0013cc28/results.json

[EiffL]

LGTM