refactor(db): replace sqlc with handwritten pgx repos

- Finish Paddle-to-Stripe billing migration; drop paddle/stripe libs
- Renumber migrations; add 00012 memberships+manage_token,
  00013 location_type_capacity
- Add tests: admin, auth, bookings customer service
- Remove graphify-out artifacts and stale env files

Authored By: TDvorak <[email protected]>

Generated with [Devin](https://devin.ai)

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

README.md

@@ -1,18 +1,17 @@
 # Bookra
 
-Remote-first booking SaaS scaffold aligned to the `tdvorak-fullstack` profile with these overrides:
+Remote-first booking SaaS aligned to the `tdvorak-fullstack` profile with these overrides:
 
 - frontend on Vercel
 - backend on Railway
 - Neon Postgres + Neon Auth
-- Paddle billing
+- Stripe billing (checkout, customer portal, webhooks, SMS usage invoices)
 - no Docker-based local runtime
 
 ## Workspace
 
 - `apps/frontend` SolidJS frontend
 - `apps/backend` Go API
-- `apps/auth-service` auth + internal admin service
 - `packages/api-client` generated TypeScript client/types from OpenAPI
 - `packages/shared-types` shared frontend constants and helpers
 
@@ -36,14 +35,17 @@ Both apps expect remote services:
 
 - Neon Postgres
 - Neon Auth
-- Paddle
-
-Optional extra service:
-
-- `apps/auth-service` for standalone auth/admin workflows
+- Stripe
 
 See `.env.example`, `apps/frontend/.env.example`, and `apps/backend/.env.example`.
 
+### Demo mode
+
+Set `BOOKRA_DEMO_MODE=true` to run the backend with an in-memory repository and
+pre-populated demo data — no database, Neon Auth, or Stripe required. All
+requests are authenticated as the `demo-owner` principal. Pair with
+`VITE_BOOKRA_DEMO_MODE=true` on the frontend.
+
 ## CI/CD
 
 - GitHub Actions CI lives in [`.github/workflows/ci.yml`](/home/tdvorak/Desktop/PROG+HTML/Bookra/.github/workflows/ci.yml:1)
@@ -52,13 +54,27 @@ See `.env.example`, `apps/frontend/.env.example`, and `apps/backend/.env.example
 ## Backend database commands
 
 ```bash
-npm run db:generate
 npm run db:migrate:status
 npm run db:migrate:up
 ```
 
 `db:migrate:*` expects `BOOKRA_DATABASE_DIRECT_URL` to be exported in the shell.
 
+The API client types are regenerated from the OpenAPI spec:
+
+```bash
+npm run generate:api-client
+```
+
+## Verification
+
+```bash
+npm run verify
+```
+
+Runs API-client generation, frontend typecheck, backend tests, and both builds.
+Run this before pushing.
+
 ## Brand Colors
 
 Bookra uses a sophisticated color system designed for modern booking interfaces with support for both light and dark themes.
@@ -90,7 +106,7 @@ Bookra uses a sophisticated color system designed for modern booking interfaces
 
 ### Shadow System
 - **Shadow XS** (`--shadow-xs`): 0 1px 2px 0 rgba(0, 0, 0, 0.05)
-- **Shadow SM** (`--shadow-sm`): 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06)
+- **Shadow SM** (`--shadow-sm`): 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.06)
 - **Shadow MD** (`--shadow-md`): 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06)
 - **Shadow LG** (`--shadow-lg`): 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05)
 - **Shadow XL** (`--shadow-xl`): 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04)