feat(github-copilot-sdk): bump version to v0.11.0 for performance & stability

- Fixed shared client pool bug to eliminate TTFT latency.
- Added pure BYOK-only mode support.
- Improved cross-user environment isolation for concurrency.
- Resolved RichUI infinite vertical sizing loop.
- Integrated client.ping() into stall detection.
- Automatically hide TODO List widget after completion.
- Synced all documentation and release notes.

.agent/learnings/richui-default-actions-optout.md

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+# RichUI Default Action Opt-Out
+
+> Discovered: 2026-03-16
+
+## Context
+This applies to RichUI embeds generated by `plugins/pipes/github-copilot-sdk/github_copilot_sdk.py`, especially when a specific embed should render state without fallback prompt or link actions.
+
+## Finding
+The RichUI bridge can add fallback action buttons based on declarative prompt/link metadata. Static embeds can explicitly opt out when their HTML includes `data-openwebui-no-default-actions="1"` or `data-openwebui-static-widget="1"`.
+
+## Solution / Pattern
+Mark the embed root with both attributes and keep the embed wrapped through `_prepare_richui_embed_html(...)` when you explicitly want to suppress fallback actions.
+
+Example:
+
+```html
+<div class="w" data-openwebui-no-default-actions="1" data-openwebui-static-widget="1">
+```
+
+## Gotchas
+If the opt-out markers are missing, RichUI fallback actions can reappear even after interactive row handlers have been removed from the widget itself.
+
+This opt-out only suppresses fallback prompt/link injection. It does not affect the SQL-driven TODO refresh path, which still re-emits the widget through `type: embeds` after `todos` or `todo_deps` updates.