Removes all references to "beta" from the Coder Agents documentation
under `docs/ai-coder/agents/` and the corresponding `"state": ["beta"]`
entries in `docs/manifest.json`. Also updates screenshots, video, and
hero image, and regenerates the auto-generated feature-stages table.
**Beta reference removal:**
- `getting-started.md`: Removed "Coder Agents is in Beta" from the top
note, "is in beta" from the Chats API note, and "during Beta" from the
feedback section. Removed the version/stability note pinning 2.33.1.
- `index.md`: Removed the "Product status" section that stated Coder
Agents is in Beta.
- `manifest.json`: Removed `"state": ["beta"]` from 17 entries for pages
under `docs/ai-coder/agents/`. Preserved all `premium` and `early
access` states.
- `feature-stages.md`: Regenerated the auto-generated beta features
table, which no longer lists Coder Agents.
**Asset updates:**
- `coder-agents-ui.mp4`: Updated demo video on the agents landing page.
- `llm-providers.png`: Updated LLM provider support screenshot.
- `models-list.png`: Updated models list screenshot.
- `models-add-model.png`: Updated add model form screenshot.
- `agents-hero-image.png`: Updated hero image on the `docs/ai-coder`
landing page.
Two references in `models.md` (`v1beta` in the Google Gemini API URL and
`anthropic-beta` in the Anthropic header name) were left unchanged as
they are provider API identifiers, not product status labels.
PR generated with Coder Agents
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Co-authored-by: Nick Vigilante <nickvigilante@users.noreply.github.com>
