feat(gui): warehouse dashboard tab and per-execution warehouse picker

[mengw15]

What changes were proposed in this PR?

Adds the user-facing UI for per-user warehouses (#6870), shown only when the backend reports the feature enabled (GET /warehouse/status):

• Warehouses dashboard tab (/user/warehouse): list, create, and delete the caller's warehouses, via a new WarehouseService. Deleting warns that the warehouse's data is purged.
• On-canvas picker in the computing-unit selection control: chooses which warehouse the next run writes to; the pick rides WorkflowExecuteRequest.warehouseId. Mirroring the CU selector, it preselects the latest execution's warehouse (whId, now on WorkflowExecutionsEntry) and falls back to the user's first warehouse, so a run needs no explicit pick.
• Gating: the sidebar tab and the picker stay hidden while the flag is off; the UI is unchanged in that state.

Any related issues, documentation, discussions?

Closes #6933. Backend counterpart: #7473.

How was this PR tested?

New Vitest specs for WarehouseService (HTTP + pick state) and the warehouse tab (disabled/empty/list, create, delete); new cases in the CU-selection, execute-workflow, and dashboard specs covering preselection, the warehouseId payload, and tab gating. All touched spec files pass locally (117 tests).

Was this PR authored or co-authored using generative AI tooling?

Generated-by: Claude Code (claude-fable-5)

[github-actions]

Automated Reviewer Suggestions

Based on the git blame history of the changed files, we recommend the following reviewers:

• Contributors with relevant context: @Neilk1021, @aglinxinyuan, @kunwp1
  You can notify them by mentioning @Neilk1021, @aglinxinyuan, @kunwp1 in a comment.

[Copilot]

Pull request overview

Adds feature-gated warehouse management and per-execution warehouse selection to the frontend.

Changes:

• Adds warehouse API types, service, dashboard page, and routing.
• Adds warehouse selection and execution payload integration.
• Adds feature gating and Vitest coverage.

Reviewed changes

Copilot reviewed 20 out of 20 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
execute-workflow.service.ts	Sends the selected warehouse ID.
execute-workflow.service.spec.ts	Tests execution payload handling.
computing-unit-selection.component.ts	Implements warehouse selection.
computing-unit-selection.component.spec.ts	Tests picker behavior.
computing-unit-selection.component.scss	Styles the picker.
computing-unit-selection.component.html	Renders the picker.
workflow-executions-entry.ts	Adds execution warehouse metadata.
workflow-execution-history.component.spec.ts	Updates execution fixtures.
user-warehouse.component.ts	Implements warehouse management.
user-warehouse.component.spec.ts	Tests management flows.
user-warehouse.component.scss	Styles the warehouse page.
user-warehouse.component.html	Renders warehouse management UI.
dashboard.component.ts	Loads warehouse feature status.
dashboard.component.spec.ts	Tests tab gating.
dashboard.component.html	Adds the Warehouses tab.
warehouse.ts	Defines warehouse API types.
warehouse.service.ts	Implements warehouse API and selection state.
warehouse.service.spec.ts	Tests API calls and selection state.
app-routing.module.ts	Registers the warehouse route.
app-routing.constant.ts	Defines the warehouse route constant.

Suppressed comments (4)

frontend/src/app/workspace/component/power-button/computing-unit-selection.component.ts:323

• On a reused workspace component, this error path retains the previous workflow's lastExecutionWhid. If workflow A used warehouse 2 and workflow B has no executions, B therefore selects warehouse 2 instead of the documented first-warehouse fallback. Clear the cached execution warehouse before applying the fallback.

                  // No execution history: still preselect a warehouse (the first one).
                  this.applyWarehousePreselect();

frontend/src/app/workspace/component/power-button/computing-unit-selection.component.ts:347

• Returning here leaves the root-scoped service's prior warehouse ID intact. After the feature is disabled or the current user has no warehouses, the picker is hidden but ExecuteWorkflowService still sends that stale explicit ID; the backend then rejects the run instead of using shared storage. Clear the service selection in this branch.

  private applyWarehousePreselect(): void {
    if (!this.warehouseEnabled || this.warehouses.length === 0) {
      return;

frontend/src/app/workspace/component/power-button/computing-unit-selection.component.ts:315

• Every workflow change leaves its retrieveLatestWorkflowExecution request active. If workflow A's response arrives after switching to B, this callback applies A's warehouse while this.workflowId already points to B, so B's next run can write to the wrong warehouse. Cancel older requests with switchMap, or capture the requested workflow ID and ignore responses that no longer match.

                  this.lastExecutionWhid = latestWorkflowExecution.whId ?? undefined;
                  this.applyWarehousePreselect();

frontend/src/app/workspace/component/power-button/computing-unit-selection.component.ts:350

• This preselection can overwrite an explicit user choice. Once the status response renders the picker, a user can select a warehouse before the concurrent latest-execution request finishes; its later callback calls this method and silently changes the selection. Track whether the user has selected a value for the current workflow and do not preselect after that point.

    const lastUsed = this.warehouses.find(warehouse => warehouse.whid === this.lastExecutionWhid);
    this.warehouseService.selectWarehouse((lastUsed ?? this.warehouses[0]).whid);

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[codecov-commenter]

Codecov Report

❌ Patch coverage is 95.78947% with 12 lines in your changes missing coverage. Please review.
✅ Project coverage is 90.54%. Comparing base (12169c2) to head (c6d5fdf).
⚠️ Report is 43 commits behind head on main.

Files with missing lines	Patch %	Lines
...create-modal/warehouse-create-modal.component.html	77.77%	4 Missing ⚠️
.../user/user-warehouse/user-warehouse.component.html	89.28%	3 Missing ⚠️
...wer-button/computing-unit-selection.component.html	92.68%	3 Missing ⚠️
...src/app/workspace/component/menu/menu.component.ts	83.33%	1 Missing ⚠️
...power-button/computing-unit-selection.component.ts	97.77%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #7536      +/-   ##
============================================
+ Coverage     89.65%   90.54%   +0.88%     
- Complexity     4397     4401       +4     
============================================
  Files          1177     1185       +8     
  Lines         46996    47390     +394     
  Branches       5268     5300      +32     
============================================
+ Hits          42136    42910     +774     
+ Misses         3094     2807     -287     
+ Partials       1766     1673      -93     

Flag	Coverage Δ		*Carryforward flag
access-control-service	70.00% <ø> (ø)		Carriedforward from 94c35f4
agent-service	98.62% <ø> (-0.01%)	⬇️	Carriedforward from 94c35f4
amber	86.38% <ø> (+0.02%)	⬆️	Carriedforward from 94c35f4
computing-unit-managing-service	72.46% <ø> (ø)		Carriedforward from 94c35f4
config-service	77.31% <ø> (ø)		Carriedforward from 94c35f4
file-service	68.90% <ø> (ø)		Carriedforward from 94c35f4
frontend	92.63% <95.78%> (+1.96%)	⬆️
notebook-migration-service	78.89% <ø> (ø)		Carriedforward from 94c35f4
pyamber	97.57% <ø> (ø)		Carriedforward from 94c35f4
workflow-compiling-service	57.89% <ø> (ø)		Carriedforward from 94c35f4

*This pull request uses carry forward flags. Click here to find out more.

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