feat(web): show project in session header

[swear01]

Summary

• add configurable Project metadata to the session header (enabled by default)
• derive worktree projects from metadata.worktree.basePath and simple sessions from metadata.path
• keep project and worktree branch independent on desktop; prioritize project on mobile
• reuse the project label formatter in the session sidebar and share metadata
• add English/Chinese labels and regression coverage

Closes #1395

Testing

• bun typecheck
• bun run test
• CI=1 PLAYWRIGHT_WEB_PORT=5187 bun run test:e2e -- terminal-wrap-fidelity.spec.ts composer-copy.spec.ts

[github-actions]

Findings

• [Minor] Blank worktree base paths fall through to the checkout path — basePath || metadata.path treats a worktree with an empty/whitespace basePath as a simple session. The header, share image, and sidebar then expose/group by the worktree checkout path instead of hiding an unknown repository project, contrary to this helper's worktree-vs-simple contract. Evidence web/src/lib/sessionProjectLabel.ts:11.
  Suggested fix:

  export function getSessionProjectPath(metadata: SessionProjectMetadata | null | undefined): string | null {
      if (metadata?.worktree) return metadata.worktree.basePath?.trim() || null
      return metadata?.path?.trim() || null
  }

Summary

• Review mode: initial
• One minor correctness issue found in project-path fallback handling. No blocker or major issue found in the modified lines.

Testing

• Not run (automation; PR code was not executed).
• Add a regression case where worktree.basePath is blank and metadata.path points at the checkout; expect no project path rather than the checkout path.

HAPI Bot

[github-actions]

[MINOR] Blank worktree base paths fall through to the checkout path

Because basePath and metadata.path are combined with ||, a worktree whose basePath is empty/whitespace is treated like a simple session. That makes all three consumers show/group by the checkout path even though the helper contract says worktrees use the repository base path and simple sessions use metadata.path.

Suggested fix:

if (metadata?.worktree) return metadata.worktree.basePath?.trim() || null
return metadata?.path?.trim() || null

Please also cover a blank worktree.basePath with a nonblank checkout path in sessionProjectLabel.test.ts.

[github-actions]

Findings

• None.

Summary

• Review mode: follow-up after new commits
• No blocker, major, minor, or nit findings in the latest full diff. The previous blank-worktree-base-path issue is fixed at web/src/lib/sessionProjectLabel.ts:10, with regression coverage at web/src/lib/sessionProjectLabel.test.ts:25.
• Residual testing gap: no browser-level assertion covers the rendered mobile project priority or project metadata in the share preview; the selector/helper coverage limits the remaining risk.

Testing

• Not run (automation; source-only review).
• Suggested: add a focused UI assertion for mobile project rendering and share-preview project inclusion when those paths are next exercised.

HAPI Bot