fix(frontend): align layout elements and refine breadcrumbs based on page feedback

[dembrane-sam-bot]

What this changes

• PageContainer alignment shifted from centered (mx-auto) to left-aligned (mr-auto), ensuring all project pages align with the sidebar navigation edge — PageContainer.tsx
• QR code card on the project home page is left-aligned instead of centered — ProjectQRCode.tsx
• "Start a chat" button on project home page uses the brand's Royal Blue default theme styling (was: off-brand Mantine blue and filled bypass) — ProjectHomeRoute.tsx
• Breadcrumbs no longer display duplicate "Home" or redundant "Overview" crumbs when landing on workspace/project home pages — AppBreadcrumbs.tsx

Confidence

Confidence: high. Direct, focused layout and style fixes targeting the specific issues reported in page feedback, aligning perfectly with frontend brand guidelines.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: ASSERTIVE

Plan: Pro

Run ID: 68ce3895-bc6c-4ba4-af6f-f7561f3448ed

📥 Commits

Reviewing files that changed from the base of the PR and between b12baf5 and 3ea56d0.

📒 Files selected for processing (4)

• echo/frontend/src/components/layout/PageContainer.tsx
• echo/frontend/src/components/project/ProjectQRCode.tsx
• echo/frontend/src/features/sidebar/breadcrumbs/AppBreadcrumbs.tsx
• echo/frontend/src/routes/project/ProjectHomeRoute.tsx

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch sam/project-page-feedback-fixes

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