feat(panels) AIAssistPanel

[ibgreen]

Summary

Adds AIAssistPanel to @deck.gl-community/panels, based on the deck.gl AI assistant widget PR. The new panel is deck-independent and can be used through existing panel containers or deck-facing panel widgets.

Changes

• Added AIAssistPanel, AIAssistPanelProps, and AIAssistPanelConfig
• Integrated OpenAssistant UI through an internal React root mounted from a Preact panel wrapper
• Added model config handling with onConfigChange
• Added OpenAssistant/React package dependencies and refreshed yarn.lock
• Added docs, sidebar entry, whats-new note, and panel docs example highlight
• Added browser tests for defaults, config panel wiring, theme behavior, and event propagation

Validation

• yarn
• yarn test --project browser modules/panels/src/widget-panels/ai-assist-panel.test.tsx
• npx tsc -p modules/panels/tsconfig.json --noEmit
• yarn lint

Note: yarn lint passes but still reports existing warnings in unrelated modules.

[github-actions]

Coverage

Stmts: 26.25% ▼-0.05% | Branch: 19.62% ▼-0.05% | Funcs: 23.67% ▼-0.11% | Lines: 26.24% ▼-0.05%

Test Files 70 passed (70)

[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Avoid top-level CSS import in AIAssistPanel module

Importing @openassistant/ui/dist/index.css at module scope makes the new AI panel file side-effectful, and modules/panels/src/index.ts now re-exports that file so any root import of @deck.gl-community/panels will eagerly evaluate it. This breaks non-bundled Node/SSR consumers (including the CJS entrypoint) that do not have a CSS loader, even if they never use AIAssistPanel, because module initialization fails on the .css import.

Useful? React with 👍 / 👎.