### What problem does this PR solve?
As title
```
/api/v1/datasets/<dataset_id>/documents/<document_id>/metadata/config PUT
```
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
Co-authored-by: Yingfeng <yingfeng.zhang@gmail.com>
Implements POST /api/v1/searchbots/ask in Go with streaming SSE,
citations, and think-tag processing. 23 files, 90+ unit tests.
---------
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
## What problem does this PR solve?
Go test files are never compiled in CI — only production binaries via
`go build`. This allowed a missing `"sort"` import in
`metadata_filter_test.go` to be merged without detection.
## Type of change
- [x] Bug Fix (non-breaking change which fixes an issue)
- [x] New Feature (non-breaking change which adds functionality)
## Changes
- Add `go test -count=1 ./internal/...` step after Go build in CI
workflow
- Fix missing `"sort"` import in `metadata_filter_test.go` (pre-existing
compile error)
🤖 Generated with [Claude Code](https://claude.com/claude-code)
---------
Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
### What problem does this PR solve?
implement /api/v1/datasets/<dataset_id>/metadata/config
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
### What problem does this PR solve?
Part of the Python → Go API server rewrite tracked in #15240 (Dataset
ingestion section). This PR implements the three dataset ingestion
endpoints in the Go API server, mirroring the existing Python
`dataset_api_service` behaviour:
- `GET /api/v1/datasets/<dataset_id>/ingestions/summary`
- `GET /api/v1/datasets/<dataset_id>/ingestions`
- `GET /api/v1/datasets/<dataset_id>/ingestions/<log_id>`
### Type of change
- [x] Refactoring
- [x] New Feature (non-breaking change which adds functionality)
Co-authored-by: sxxtony <sxxtony@users.noreply.github.com>
### What problem does this PR solve?
```
+---------------------+----------------------------------+-------------+-----------------+---------+--------+------+
| created_at | id | meta_fields | name | size | status | type |
+---------------------+----------------------------------+-------------+-----------------+---------+--------+------+
| 2026-05-08 19:35:08 | f6aa38bb4ad111f1ba6338a74640adcc | map[] | abc.pdf | 3387987 | 1 | pdf |
+---------------------+----------------------------------+-------------+-----------------+---------+--------+------+
```
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
---------
Signed-off-by: Jin Hai <haijin.chn@gmail.com>
