[Programcode]

Summary

• add workspace, membership, document metadata, and audit tables with member-scoped RLS
• add atomic idempotent workspace, document, access, ownership, and lifecycle RPCs
• enforce assignment, ordering, trash-recovery, revision, and owner-deletion contracts

Verification

• ./.superset/db-gate.sh: 5 files, 160 pgTAP assertions, both quota checks passed
• npm run verify: docs, lint, typecheck, 1,142 unit tests, 10 collaboration tests, 186 Edge tests, build, 212 Chromium E2E passed; 2 skipped
• database lint and security advisors clean
• Terra exact-head review approved ee29cbf after four Important findings were fixed

Deployment boundary

Code only. No staging or production migration or deployment is authorized by this PR.

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Project	Deployment	Actions	Updated
debate-navigator	Ready	Preview	Sep 20, 2026 6:15pm UTC

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📥 Commits

Reviewing files that changed from the base of the PR and between 483f47c and ee29cbf.

📒 Files selected for processing (3)

• supabase/migrations/20260920174841_debate_workspace_foundation.sql
• supabase/tests/workspace_lifecycle_test.sql
• supabase/tests/workspaces_rls_test.sql

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