Clarify tax workflows and review boundaries

[beepboop2025]

Summary

• describe the supported cross-border tax workflows directly
• make professional-review and jurisdictional limitations explicit
• align backend metadata, schemas, provider wording, and frontend landing copy

Verification

• frontend type check and production build passed
• backend Python compile check passed

Notes

The existing frontend dependency audit reports 7 findings; dependency upgrades are left for separate compatibility testing.

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

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Run ID: 5b1f2891-64c2-45ed-ba97-87f2281c1839

📥 Commits

Reviewing files that changed from the base of the PR and between 9d57454 and e8544e4.

📒 Files selected for processing (8)

• README.md
• backend/app/config.py
• backend/app/main.py
• backend/app/schemas/query.py
• backend/free_llm_router/__init__.py
• backend/free_llm_router/providers.py
• frontend/index.html
• frontend/src/components/Landing.tsx

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