uptake instancetypes APi

[patelspratik]

Move CLI instance catalogs to dev-plane and replace WorkspaceGroups with CloudCreds.

• Migrated the authenticated organization catalog from brev-deploy REST to dev-plane InstanceService.ListOrganizationAvailableInstanceTypes.
• Migrated public instance search from /v1/instance/types to unauthenticated dev-plane InstanceService.ListPublicInstanceType.
• Updated create flows to select and submit cloudCredId directly.
• Removed deprecated workspace-group models, fallbacks, request fields, labels, metadata, and SSH behavior.
• Normalized Docker Compose launchables so fileUrl takes precedence over hydrated yamlString, matching the UI. This was exposed by a launchable that succeeded in the UI but failed from the CLI.

API Impact

The CLI no longer calls:

• GET /api/instances/alltypesavailable/:organizationId
• GET /v1/instance/types

Organization catalogs now use authenticated dev-plane ConnectRPC and include active cloud credentials plus dev-plane provider/cloud filtering. Public brev search remains unauthenticated but now calls InstanceService.ListPublicInstanceType directly.

The existing /v1/instance/types route remains available for older CLI versions and other consumers.

The CLI also no longer:

• Sends X-Workspace-Group-ID on brev-deploy or proxy requests.
• Sends workspaceGroupId in workspace create requests or launchable labels.
• Uses workspace groups to resolve instance availability or cloud placement.

POST /api/organizations/:organizationId/workspaces remains in use for creation, but now receives cloudCredId as the placement identifier.

Workspace-Group Removal

• Removed workspace-group compatibility types and catalog aliases.
• Removed cloud-credential fallback through WorkspaceGroups.
• Removed workspace-group fields from workspace entities, create options, launchable responses, and local workspace metadata.
• Removed hardcoded legacy workspace-group detection.
• Removed the legacy brev SSH user, /home/brev/workspace path, and automatically generated brev proxy SSH configuration.
• Existing backend workspaceGroupId response fields are ignored.

[codecov]

Codecov Report

❌ Patch coverage is 67.21311% with 40 lines in your changes missing coverage. Please review.
✅ Project coverage is 22.58%. Comparing base (83ace83) to head (3de768b).
⚠️ Report is 21 commits behind head on main.

Files with missing lines	Patch %	Lines
pkg/store/instancetypes.go	72.15%	19 Missing and 3 partials ⚠️
pkg/cmd/gpucreate/gpucreate.go	73.33%	7 Missing and 1 partial ⚠️
pkg/cmd/gpusearch/gpusearch.go	33.33%	4 Missing and 2 partials ⚠️
pkg/store/workspace.go	0.00%	4 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #421      +/-   ##
==========================================
+ Coverage   20.09%   22.58%   +2.49%     
==========================================
  Files         140      135       -5     
  Lines       18451    18587     +136     
==========================================
+ Hits         3707     4198     +491     
+ Misses      14328    13924     -404     
- Partials      416      465      +49     

Flag	Coverage Δ
Linux	22.58% <67.21%> (+2.49%)	⬆️

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