## Summary
Adds the missing input form metadata for the Go BGPT canvas component.
## Root Cause
The standalone BGPT component was registered in Go, but it did not
implement GetInputForm(). During component trial run, the backend asks
the component for its input_form. Since BGPT had none, the API returned:
component has no input_form: BGPT:<node_id>
Python BGPT already exposes the query input form, so the Go component
needed the same contract.
## Change
Added GetInputForm() to the Go BGPT component with a single query line
input.
Added test coverage to ensure BGPT exposes the input form.
## Validation
Backend:
bash build.sh --test -run TestBGPT ./internal/agent/component
<img width="1369" height="1184" alt="image"
src="https://github.com/user-attachments/assets/f99e4a81-2359-42e5-80bb-dcc4e6a63fea"
/>
<img width="1736" height="1152" alt="image"
src="https://github.com/user-attachments/assets/c11240a5-2c42-4d08-88e3-c6dfbf49eedb"
/>
## Summary
Debugging YahooFinance component in agent canvas returns "unknown
component" and "no input_form".
YahooFinance was only registered as an eino tool, not as a runtime
component. The component factory only searches the runtime registry.
- `universe_a_wrappers.go`: add `yahooFinanceComponent` wrapper
delegating to `agenttool.YahooFinanceTool` with `GetInputForm()`
- `fixture_stubs.go`: register `"YahooFinance"` component
## TEST
`go build` and `go test ./internal/agent/component/...` all pass.
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>