Archive local-dev-stack change; sync delta spec to main

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

openspec/changes/local-dev-stack/proposal.md

@@ -1,46 +0,0 @@
-## Why
-
-Infra changes (Prometheus alerts, Caddy config, Grafana dashboards) can only be
-validated against staging or production — there is no way to test them locally
-first. Meanwhile, CI E2E tests skip ~15 of 20 tests because there is no
-PostgreSQL service in the workflow, and BRouter was only recently added to CI
-with manual setup instead of reusing the dev compose file. The existing
-`docker-compose.dev.yml` covers PostgreSQL and BRouter but nothing else from the
-production stack.
-
-## What Changes
-
-- Extend `docker-compose.dev.yml` with an optional monitoring profile
-  (Prometheus, Grafana, Loki) so developers can test observability changes
-  locally before deploying to production
-- Add `pg_stat_statements` and initialization scripts to the dev PostgreSQL
-  to match production config
-- Improve `scripts/dev.sh` with proper health checks and better error output
-- Simplify CI by using the same compose file instead of ad-hoc `docker run`
-  commands
-- Add a database seed script for consistent test data
-- Add a `pnpm dev:reset` command to tear down and recreate the local stack
-
-## Capabilities
-
-### New Capabilities
-
-- `local-monitoring`: Optional local Prometheus + Grafana + Loki stack via
-  `--profile monitoring`, matching production monitoring configuration
-- `dev-reset`: One command to wipe and recreate the local dev environment
-
-### Modified Capabilities
-
-- `local-dev-environment`: PostgreSQL config aligned with production
-  (pg_stat_statements, init scripts), improved health checks, seed data
-
-## Impact
-
-- **docker-compose.dev.yml**: Add monitoring services behind a profile, update
-  postgres config to match production
-- **.github/workflows/ci.yml**: Replace manual `docker run` with compose-based
-  service startup
-- **scripts/dev.sh**: Better health checks, error messages, optional monitoring
-- **scripts/reset-dev.sh**: New script to wipe volumes and restart
-- **scripts/seed.ts**: Test data for local development and E2E tests
-- **Dependencies**: None new (all Docker images already used in production)