Wire app creation quickactions (codex)

[numnx]

🧩 Task: Wire app creation quickactions

Automated task PR opened by Code UX for T04.

📋 Summary

Sprint: Sprint 157 · Techstack Settings + Quickactions for Webapp + Desktop App · Task: T04

Add a system-managed techstack catalog and project techstack selection, expose Settings and navbar controls, and add Create Web App/Create Desktop App quickactions that apply the selected/default techstack only to newly created projects while setup can detect techstacks for imported projects.

📝 Full Task Prompt

## Objective
Implement app creation quickactions that reuse the existing project creation modal and apply explicit techstack overrides only for new projects.

## Scope
- `dashboard/src/lib/settings-updaters.ts`
- `tests/dashboard/lib/settings-updaters.test.ts`
- `dashboard/src/v2/components/TopNav.tsx`
- `dashboard/src/v2/components/ui/AddProjectModal.tsx`
- `dashboard/src/v2/components/ui/NewProjectModal.tsx` if still used by any entry point
- `dashboard/src/v2/ProjectsPage.tsx`
- `dashboard/src/v2/pages/sprints/use-sprints-page-actions.ts`
- `dashboard/src/v2/hooks/use-task-board-controller.ts`
- `tests/dashboard/v2/projects-page.test.tsx`
- `tests/dashboard/v2/top-nav-techstack.test.tsx` or the TopNav test file updated in T03
- `docs/dashboard/project-initialization.md`
- `docs-web/user/dashboard/projects.md`

## Implementation Requirements
1. Add a shared helper that composes project `settingsOverrides` for new projects from optional local git mode, `techstack.selectedTechstackId`, and `techstack.applicationKind`, while preserving existing git-manager skill synchronization.
2. Extend `AddProjectModal` submission data to carry `applicationKind` and `selectedTechstackId`, with quickaction defaults that preselect `new_project` and show Web App or Desktop App context in the modal.
3. Add navbar quickaction controls for `Create Web App` and `Create Desktop App` that use the currently selected project techstack when present, otherwise the system catalog default built-in techstack.
4. Update every duplicated new-project create handler in TopNav, Projects, Sprints, and Tasks flows to use the shared override helper so all `new_project` creations get an explicit techstack override and existing imports do not.
5. Preserve current behavior where existing local projects receive only the local git-mode override and no techstack assignment.
6. Add tests proving new local and new remote projects include techstack overrides, local new projects still include `git.githubMode: LOCAL`, existing local imports omit techstack, and quickaction app kind is passed through.
7. Update project initialization docs to distinguish imported-project setup from new app quickactions.

## Constraints
- Do not scaffold application source files in this task; project creation still initializes or clones repositories through the existing backend flow.
- Do not fork the project creation modal into separate web/desktop modals.
- Do not apply techstack overrides to `sourceType: local` or `sourceType: git` imported projects unless `initMode` is `new-local` or `new-remote`.
- Keep quickaction controls responsive and keyboard reachable in the navbar without crowding existing project/sprint selectors.

## Verification
- Run `pnpm exec vitest run tests/dashboard/lib/settings-updaters.test.ts tests/dashboard/v2/projects-page.test.tsx tests/dashboard/v2/top-nav-techstack.test.tsx` if the TopNav techstack test exists.
- Run `pnpm run test:dashboard` for broad dashboard behavior.
- Success means Create Web App/Create Desktop App open new-project creation with the correct techstack/application kind, and imported projects remain techstack-unassigned.

✅ QA Review

⏳ QA review runs after this PR is opened. Check the task card in the dashboard for the outcome once it lands.

🤖 Model & Provider

Provider	Codex CLI
Model	gpt-5.5

⏱️ Timing

Started	2026-07-07 04:46:46 UTC
Finished	2026-07-07 04:58:08 UTC
Duration	11m 22s

📊 Token Usage

Metric	Value
Input tokens	157,705
Cached input tokens	5,078,144
Output tokens	19,322
Total tokens	5,255,171
Invocations	1
Tool calls	75
Active time	10m 47s

Included usage estimate (subscription/local login): $3.91

🌿 Branch Info

Base: feature/CODUX-157-techstack-settings-quickactions-for-webapp-desktop-app
Head: task/feature-codux-157-techstack-settings-quickaction-t04-codex-mra62wtb

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🤖 Generated by Code UX