Phase 2: RLS multi-tenant isolation + first pilot operational readiness

[danishxsethi]

Release Engineering & Go/No-Go Recommendation Report

Release Ref: first-pilot-operational-ready-2026-05-30
Target Branch: origin/main
Source Branch: phase-2-rls-migration
Status: RECOMMENDED FOR MERGE (GO)

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1. Executive Summary

This report provides the final engineering verification, Pull Request compilation, and official Go/No-Go recommendation for merging the phase-2-rls-migration branch into main.

All technical quality gates, database permission constraints, and testing criteria have been successfully satisfied. The working tree is fully clean, all 1,983 tests pass successfully (100% green status), type-checking and style linting are entirely clean, and the annotated release tag first-pilot-operational-ready-2026-05-30 has been successfully created.

We recommend a GO decision for the merge of this feature branch.

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2. Pull Request Description

Title: feat(RLS): multi-tenant Row-Level Security, billing safety, and pilot operational ready guidelines

Overview of Changes

This PR completes the core technical, operational, and billing readiness requirements for the first paid pilot onboarding. It establishes PostgreSQL Row-Level Security (RLS) policies across all scoped tables, secures client onboarding workflows, enforces strict Stripe sandbox limitations, and implements daily operator runbooks.

Technical & Architectural Enhancements

1. PostgreSQL Row-Level Security (RLS):

   • Implemented and enabled RLS policies across all tenant-scoped tables in the database.
   • Refined multi-tenant stress tests to execute queries under the non-superuser, unprivileged app_user role, forcing the database to apply RLS isolation logic.
   • Resolved Postgres app_user login permission blocks by configuring its role attributes (ALTER ROLE app_user WITH LOGIN).
   • ConfiguredPgBouncer-pooled connections correctly for non-superuser RLS stress test execution on proposal_rls_smoke.

2. Billing Safety Guards:

   • Enforced hardcoded constraints preventing live Stripe keys from entering the codebase. All active API keys are validated to begin strictly with sk_test_ or pk_test_.
   • Mapped Stripe product tiers and event hooks to sandbox webhooks, ensuring zero leakage of live billing operations.

3. Anonymization Pipeline & Test Stability:

   • Resolved a property-based test flakiness issue where empty/whitespace strings generated for the industry and locale fields failed validation rules. Added robust trimming and defaulting inside the anonymization parser.

4. Import Ordering & Linting Standard:

   • Corrected import grouping in vitest.setup.ts to ensure that msw/node is imported before vitest imports, fully complying with ESLint alphabetical and dependency ordering requirements.

5. Operational Guidelines & Runbooks:

   • Tenant Provisioning: Detailed steps for schema seeding, manual tenant provisioning, and monthly quota limits (max 20 audits/month).
   • Manual Proposal QA: Established a strict 7-dimension scoring card (average >= 7.5/10, no single score < 7.0) and non-commercial SMB copywriting rules.
   • Client Onboarding: Curatedwhite-glove onboarding scripts and expectation management structures.
   • Operator Runbook: Built standard daily diagnostics, daily API/proxy budget thresholds ($10.00/$15.00 limits), and disaster freeze procedures.

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3. Verification & Quality Gates

The following quality gates have been executed on the finalized codebase on branch phase-2-rls-migration:

Quality Gate	Verification Command	Result	Status
Type-Safety Check	npx tsc --noEmit	Clean compilation, 0 errors	PASS
Linter / Style Check	npm run lint	0 errors	PASS
Unit & Integration Tests	npx vitest run	156 test files, 1,983 tests passed	PASS
Isolation Stress Tests	npx vitest run lib/tenant/__tests__/isolation-stress.test.ts	13/13 tests passed	PASS
Dry-Run Merge	git merge --no-commit --no-ff origin/main	Already up to date, 0 conflicts	PASS

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4. Rollback and Contingency Strategy

In the event of an unforeseen incident on the staging or pilot environments following the merge, the following incremental rollback procedures must be executed:

Phase A: Database/Feature Level Rollback (No Code Revert)

If the incident is isolated to a specific tenant or query performance issue on RLS:

1. Toggle Operator Freeze Hook:
   • Execute the emergency freeze procedure documented in docs/beta/first-pilot-operator-runbook.md to temporarily halt background jobs and API interactions.
2. Disable RLS on Scoped Tables (Emergency Escape Hatch Only):
   • If an unexpected RLS isolation error completely blocks operational traffic, the DB operator can temporarily disable RLS for a specific table to restore service while a hotfix is prepared:

     ALTER TABLE "Proposal" DISABLE ROW LEVEL SECURITY;

     [!CAUTION]
     Disabling RLS must only be used in a development/staging emergency environment and is strictly prohibited in any multi-tenant live database as it exposes cross-tenant records.

Phase B: Git Commit Revert

If a severe, unresolvable regression is detected in the application layer:

1. Revert the Merge Commit:
   • Identify the merge commit hash on main and execute:

     git revert -m 1 <merge_commit_hash>

2. Re-tag for Hotfix Branching:
   • Branch off the release tag first-pilot-operational-ready-2026-05-30:

     git checkout -b hotfix/rls-regression first-pilot-operational-ready-2026-05-30

Phase C: Stripe Billing Webhook Deactivation

If Stripe webhooks begin generating mapping failures:

1. Immediately disable the active webhook endpoint inside the Stripe Sandbox dashboard.
2. Fallback to manual subscription reconciliation using the billing safety checklist under docs/beta/paid-pilot-billing-readiness-checklist.md.

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5. Official Release Go/No-Go Recommendation

Final Recommendation: GO

Justification

• 100% Verified Quality Gates: Zero TypeScript compilation errors, zero ESLint issues, and 100% of the 1,983 tests pass successfully.
• Robust Multi-Tenant Security: RLS policies are fully verified to isolate tenant data correctly under the unprivileged app_user role.
• Absolute Sandbox Isolation: All database URLs and testing metrics are isolated to local docker containers, and Stripe operations are hard-fenced inside Stripe Sandbox with no live credentials present.
• Clean Release State: The working tree has been formatted, all changes committed, and the release tagged systematically.