Add parquet replay import workstation

[zifanzhou1024]

Summary

• Adds admin-backed parquet replay import with local-only baseline support for development/testing.
• Splits realtime and replay surfaces, adds professional replay transport, ET market-time playback, and replay session controls.
• Adds chart inspection, shared strike domains, market map/data quality/walls/regime/change-over-time panels, and replay workstation layout hardening.

Validation

• PR Improve replay workstation chart inspection and market intelligence #1 CI passed before merge into this integration branch: api, contracts-and-web.
• /Users/sakura/WebstormProjects/gamma-scope/.venv/bin/python -m pytest apps/api/tests -q
• pnpm --filter @gammascope/web test
• pnpm --filter @gammascope/web typecheck

Local Replay Data

• Parquet baseline files remain local-only under .gammascope/ and are ignored by git.
• Public deployments can restore replay sessions through the admin import workflow.