## Summary
This PR updates Go agent publish logic to persist the parent canvas
update and canvas-version save in the same transaction.
## Changes:
- Reuse SaveOrReplaceLatest semantics for published versions
- Add SaveOrReplaceLatestTx for transactional publish flow
- Keep canvas release update and version persistence atomic
- Add a focused publish test covering canvas and released version state
## Tested:
```
bash build.sh --test -run 'Test(PublishAgentUpdatesCanvasAndReleasedVersion|UpdateAgentDSLCreatesAndReplacesDraftVersion|
UpdateAgentDSLDoesNotOverwriteLatestReleasedVersion)$' ./internal/service ./internal/dao
```
<img width="1476" height="850" alt="image"
src="https://github.com/user-attachments/assets/2c576581-1143-420b-8750-a77aa3c4292d"
/>
### Summary
This PR fixes a Go backend bug where updating agent settings, such as
description, could clear the agent DSL.
Root cause:
PUT /api/v1/agents/:canvas_id only bound the dsl field in Go. When the
frontend submitted settings without dsl, the service still updated the
canvas with an empty DSL value.
Changes:
- Treat agent updates as partial patches.
- Preserve existing DSL when dsl is not present in the request.
- Update only specified user_canvas fields instead of saving the full
row.
- Add a regression test for settings updates preserving DSL.
Test:
`go test ./internal/service ./internal/handler`
Co-authored-by: Zhichang Yu <yuzhichang@gmail.com>
Refactor the Go agent port's logging so every log line — gin access,
agent canvas events, harness warnings, fatal boot errors — flows through
a single common.Logger (zap) backed by a rotated file, with structured
fields, level filtering, and configurable rotation.
---------
Co-authored-by: Claude <noreply@anthropic.com>
Replaces the Python agent canvas runtime with a Go implementation that
runs inside `cmd/server_main`.
The canvas compiles into an eino Workflow that pauses on wait-for-user
via native Interrupt/Resume (no sentinel flag) and resumes from a
Redis-backed CheckPointStore.
All 21 Python agent components and ~35 tools are ported with functional
parity.
Sandbox providers now read their JSON config from the admin-panel
system_settings table with env fallback.
234 files / +35,413 / -6,111. All Go files are gofmt-clean (CI gate
added); drops the v2 DSL E2E step and the gap-analysis plan (both
redundant after the port ships).
## Type of change
- [x] Refactoring
- [x] New feature
- [x] Bug fix
🤖 Generated with [Claude Code](https://claude.com/claude-code)
---------
Co-authored-by: Claude <noreply@anthropic.com>
### What problem does this PR solve?
Add two API in go
```
/api/v1/agents/test_db_connection POST
/api/v1/agents/<agent_id>/sessions DELETE
```
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
---------
Co-authored-by: Yingfeng <yingfeng.zhang@gmail.com>
### What problem does this PR solve?
As Title
Codes were tested by Postman
### Type of change
- [x] New Feature (non-breaking change which adds functionality)
## Summary
Port the canvas-template catalogue endpoint to the Go API server. Listed
in the Go-API port checklist of #15240.
Mirrors `list_agent_template` in `api/apps/restful_apis/agent_api.py`:
returns every row from the `canvas_template` table so that the UI can
render the template gallery on the New-Agent screen.
## What
- `internal/dao/canvas_template.go` — new `CanvasTemplateDAO.GetAll()`
ordered by `create_time desc` (newest templates first).
- `internal/service/agent.go` — wire the new DAO into `AgentService` and
expose `ListTemplates() ([]*entity.CanvasTemplate, error)`.
- `internal/handler/agent.go` — new `AgentHandler.ListTemplates` HTTP
handler (auth-gated, mirrors Python `@login_required`).
- `internal/router/router.go` — `agents.GET("/templates",
r.agentHandler.ListTemplates)` registered alongside the existing `GET
/agents`.
- `internal/handler/agent_test.go` — three new tests covering: success
path, empty-list → JSON array (not `null`), and the auth gate.
## Notes
- `CanvasTemplate` entity, GORM tags, and DB migration already exist in
`internal/entity/canvas.go` and `internal/dao/database.go` — no schema
change required.
- The handler coerces a `nil` slice to `[]*entity.CanvasTemplate{}` so
the JSON payload is always an array (the frontend does `data.map(...)`
on it).
## Test plan
- [x] `go vet ./internal/handler ./internal/service ./internal/dao
./internal/router` clean
- [x] Three unit tests added; existing `TestListAgents_Success`
untouched
- [ ] CI runs `go test ./internal/handler` with cgo binding linked
## Related
- Tracker: #15240
## Summary
Closes: #15328
- Implements `GET /api/v1/agents` — the agent/canvas listing endpoint
needed to complete the Home dashboard tile in `web/src/pages/home/`.
- Mirrors Python `api/apps/restful_apis/agent_api.py::list_agents`
exactly: tenant-join auth, optional `owner_ids` guard, keyword filter,
pagination, ordering, and `canvas_category` filter (default:
`agent_canvas`).
- **Scope:** read-only list only. Full agent CRUD and canvas runtime are
explicitly out of scope (separate slice of #15240).
