feat(crdless): migrate PAPI endpoints to CRD-less sync architecture

[theyashl]

Summary

• Replaces branch-based Git commit endpoints with the new DB-direct sync endpoints from platform PR #3460
• /api/v3/locations → /api/v3/runners (runner list fallback in _get_authorized_locations)
• commit_slx / deploy_registry_codebundle: replaces single POST /api/v3/workspaces/{ws}/branches/{branch}/slxs/{name} with a 3-step sync flow via /api/v1/workspaces/{ws}/*s/sync
• delete_slx: replaces branch-based DELETE with DELETE /api/v1/workspaces/{ws}/slxs/{ws}--{name} (soft-delete)

What changed

New endpoints used

Old	New
GET /api/v3/locations	GET /api/v3/runners
POST /api/v3/workspaces/{ws}/branches/{branch}/slxs/{name}	POST /api/v1/workspaces/{ws}/slxs/sync + runbooks/sync + slis/sync
DELETE /api/v3/workspaces/{ws}/branches/{branch}/slxs/{name}	DELETE /api/v1/workspaces/{ws}/slxs/{ws}--{name}

New sync flow

The new _sync_slx_resources() helper does the multi-step upsert:

1. POST SLX payload → gets back resource_id
2. Injects slx_id = resource_id into runbook/SLI payloads
3. POSTs runbook and/or SLI payloads

New payload builders: _build_slx_payload, _build_runbook_payload, _build_sli_payload.

Backward compat

The branch and commit_message parameters on commit_slx and delete_slx are retained but ignored — the sync API is branchless.

Test plan

• commit_slx creates SLX + runbook in workspace
• commit_slx with sli_script creates SLX + runbook + SLI
• commit_slx with cron_schedule creates SLX + runbook + cron SLI
• commit_slx with task_type="sli" creates SLX + SLI only
• deploy_registry_codebundle deploys runbook and/or SLI from registry
• delete_slx soft-deletes an existing SLX
• get_workspace_locations falls back to /api/v3/runners correctly

🤖 Generated with Claude Code