Migrate to new Gitea instance (gitea.wbd-rd.nl)

- Update all submodule URLs from gitea.centraal.wbd-rd.nl to gitea.wbd-rd.nl
- Add settler as proper submodule in .gitmodules
- Add agent skills, function anchors, decisions, and improvements
- Add Docker configuration and scripts
- Add manuals and third_party docs
- Update .gitignore with secrets and build artifacts
- Remove stale .tgz build artifact

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

manuals/node-red/flowfuse-widgets-catalog.md

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+# FlowFuse Dashboard 2.0 — Widget Catalog
+
+Source: https://dashboard.flowfuse.com/
+
+## Widgets (22 types)
+
+| Widget | Type String | Description |
+|--------|-------------|-------------|
+| Audio | `ui-audio` | Play audio files or TTS in browser |
+| Button | `ui-button` | Clickable button, sends msg on click/pointerdown/pointerup |
+| Button Group | `ui-button-group` | Multiple buttons rendered together as toggle/selection |
+| Chart | `ui-chart` | Line, bar, scatter, pie, histogram — backed by eCharts |
+| Control | `ui-control` | Programmatic page navigation and group visibility control |
+| Dropdown | `ui-dropdown` | Select one or many options from a dropdown list |
+| Event | `ui-event` | Fires msg on browser-side events (page load, resize, etc.) |
+| File Input | `ui-file-input` | File upload from browser to Node-RED |
+| Form | `ui-form` | Multi-field input form with submit action |
+| Gauge | `ui-gauge` | Numeric display as tile, battery, tank, half-arc, or 3/4-arc |
+| Markdown | `ui-markdown` | Render markdown/HTML content |
+| Notification | `ui-notification` | Toast / snackbar / alert popups |
+| Number Input | `ui-number-input` | Numeric input field with optional range/step |
+| Progress | `ui-progress` | Linear or circular progress bar |
+| Radio Group | `ui-radio-group` | Select one option from radio buttons |
+| Slider | `ui-slider` | Horizontal or vertical slider control |
+| Spacer | `ui-spacer` | Empty cell for layout positioning |
+| Switch | `ui-switch` | On/off toggle switch |
+| Table | `ui-table` | Paginated data table with sorting/selection |
+| Template | `ui-template` | Custom Vue/Vuetify/HTML with full scripting |
+| Text | `ui-text` | Read-only text display, supports HTML |
+| Text Input | `ui-text-input` | Editable text field (text, password, email, etc.) |
+
+## Config Nodes (4 types)
+
+| Node | Type String | Purpose |
+|------|-------------|---------|
+| Base | `ui-base` | Root dashboard instance — path, nav style, header |
+| Theme | `ui-theme` | Colors, sizing, spacing, group styling |
+| Page | `ui-page` | Dashboard page — path, layout (grid/fixed/notebook/tabs), breakpoints |
+| Group | `ui-group` | Widget container — width, height, order within a page |
+
+## See Also
+
+- [ui-gauge manual](flowfuse-ui-gauge-manual.md)
+- [ui-text manual](flowfuse-ui-text-manual.md)
+- [ui-template manual](flowfuse-ui-template-manual.md)
+- [ui-button manual](flowfuse-ui-button-manual.md)
+- [ui-chart manual](flowfuse-ui-chart-manual.md)
+- [ui-config manual](flowfuse-ui-config-manual.md)
+- [Dashboard layout notes](flowfuse-dashboard-layout-manual.md)