Extract all api-docs/ changes from feat-api-uplift into a standalone
branch for independent testing and merging to master.
Changes include:
- Updated generation scripts (generate-openapi-articles.ts,
openapi-paths-to-hugo-data/index.ts) for Hugo-native templates
- Removed dead x-tagGroups infrastructure (decorator, config files)
- Updated Core and Enterprise specs with tag descriptions, x-related
links, and Cache Data tag split
- Added v1 product configs and specs (OSS v1, Enterprise v1)
- Updated getswagger.sh for renamed spec files
- Updated generate-api-docs.sh with clean regeneration support
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