fix: unblock local development readiness

[alramalho]

Summary

• Fixes frontend lint hard errors while leaving existing warnings non-blocking.
• Adds backend ESLint config and switches backend CI tests to non-watch vitest run.
• Skips credentialed AI/embedding integration suites by default, fixes stale ActivityEntry datetime fixture, and avoids import-time credential failures.
• Adds e2e-tests to the pnpm workspace and updates README local setup docs.

Verification

• pnpm install --frozen-lockfile
• pnpm build
• pnpm --filter frontend-vite lint
• pnpm --filter backend-node lint
• pnpm --filter backend-node test:ci
• pnpm --filter e2e-tests exec playwright test --list

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Project	Deployment	Actions	Updated (UTC)
tracking-software-vite	Ready	Preview, Comment	Jun 1, 2026 10:43am

[alramalho]

Closing/replacing this broad change set with explanation-first minimal PR #27: #27. The originating issue was not local app startup failure; install/build/startup path works. The remaining failures are lint/test/e2e readiness checks and should be handled as separate scoped CI/tooling cleanup if wanted.

[alramalho]

Replaced by explanation-first minimal PR #27: #27