docs: bifurcate documentation into user, admin, and developer sections

Major restructuring of documentation to separate concerns:

**New Structure:**
- `/docs/` - User-facing docs (intro, quickstart, databases, using-superset, faq)
- `/admin-docs/` - Administrator docs (installation, configuration, security)
- `/developer-docs/` - Developer docs (contributing, extensions, guidelines, testing)

**Changes:**
- Move installation, configuration, and security docs to admin_docs/
- Move contributing, extensions, guidelines, and testing to developer_docs/
- Rename developer_portal to developer_docs (with underscore to hyphen in URL)
- Add sidebarAdminDocs.js for admin documentation navigation
- Update versions-config.json with new doc sections
- Update docusaurus.config.ts with new plugins and redirects
- Update internal links in versioned docs (6.0.0) to use new paths
- Keep user-facing content (databases, using-superset, faq) in main docs

This separation makes it clearer which documentation is relevant for:
- End users exploring and visualizing data
- Administrators deploying and configuring Superset
- Developers contributing to or extending Superset

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

docs/developer_docs/components/TODO.md

@@ -0,0 +1,71 @@
+---
+title: Components TODO
+sidebar_class_name: hidden
+---
+
+# Components TODO
+
+These components were found but not yet supported for documentation generation.
+Future phases will add support for these sources.
+
+## Summary
+
+- **Total skipped:** 19 story files
+- **Reason:** Import path resolution not yet implemented
+
+## Skipped by Source
+
+### App Components
+
+9 components
+
+- [ ] `superset-frontend/src/components/AlteredSliceTag/AlteredSliceTag.stories.tsx`
+- [ ] `superset-frontend/src/components/Chart/DrillDetail/DrillDetailTableControls.stories.tsx`
+- [ ] `superset-frontend/src/components/CopyToClipboard/CopyToClipboard.stories.tsx`
+- [ ] `superset-frontend/src/components/ErrorMessage/ErrorAlert.stories.tsx`
+- [ ] `superset-frontend/src/components/FacePile/FacePile.stories.tsx`
+- [ ] `superset-frontend/src/components/FilterableTable/FilterableTable.stories.tsx`
+- [ ] `superset-frontend/src/components/RowCountLabel/RowCountLabel.stories.tsx`
+- [ ] `superset-frontend/src/components/Tag/Tag.stories.tsx`
+- [ ] `superset-frontend/src/components/TagsList/TagsList.stories.tsx`
+
+### Dashboard Components
+
+2 components
+
+- [ ] `superset-frontend/src/dashboard/components/AnchorLink/AnchorLink.stories.tsx`
+- [ ] `superset-frontend/src/dashboard/components/nativeFilters/FilterBar/FilterControls/FilterDivider.stories.tsx`
+
+### Explore Components
+
+4 components
+
+- [ ] `superset-frontend/src/explore/components/ControlHeader.stories.tsx`
+- [ ] `superset-frontend/src/explore/components/RunQueryButton/RunQueryButton.stories.tsx`
+- [ ] `superset-frontend/src/explore/components/controls/BoundsControl.stories.tsx`
+- [ ] `superset-frontend/src/explore/components/controls/SliderControl.stories.tsx`
+
+### Feature Components
+
+2 components
+
+- [ ] `superset-frontend/src/features/datasets/AddDataset/DatasetPanel/DatasetPanel.stories.tsx`
+- [ ] `superset-frontend/src/features/home/LanguagePicker.stories.tsx`
+
+### Filter Components
+
+2 components
+
+- [ ] `superset-frontend/src/filters/components/Range/RangeFilterPlugin.stories.tsx`
+- [ ] `superset-frontend/src/filters/components/Select/SelectFilterPlugin.stories.tsx`
+
+## How to Add Support
+
+1. Determine the correct import path for the source
+2. Update `generate-superset-components.mjs` to handle the source
+3. Add source to `SUPPORTED_SOURCES` array
+4. Re-run the generator
+
+---
+
+*Auto-generated by generate-superset-components.mjs*