Add bun integration tests for docs flow, update integration guide

- Add test/integration.test.ts: getServicePublicKey, full flow (register, login, createCollection, createPointFeature, listFeatures)
- Update docs example: registerBySigningServiceKey then loginWithSignature
- Document integration tests in typescript-frontend-integration.md

Made-with: Cursor

internal/store/migrations/0001_init.sql

@@ -0,0 +1,57 @@
+-- Users
+CREATE TABLE IF NOT EXISTS users (
+  public_key TEXT PRIMARY KEY,
+  inviter TEXT,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+-- Challenges (login nonces)
+CREATE TABLE IF NOT EXISTS challenges (
+  nonce TEXT PRIMARY KEY,
+  public_key TEXT NOT NULL,
+  expires_at TIMESTAMPTZ NOT NULL,
+  used BOOLEAN NOT NULL DEFAULT FALSE
+);
+
+-- Sessions
+CREATE TABLE IF NOT EXISTS sessions (
+  token TEXT PRIMARY KEY,
+  public_key TEXT NOT NULL,
+  expires_at TIMESTAMPTZ NOT NULL
+);
+
+-- Invitations
+CREATE TABLE IF NOT EXISTS invitations (
+  jti TEXT PRIMARY KEY,
+  inviter_public_key TEXT NOT NULL,
+  invitee_public_key TEXT,
+  expires_at TIMESTAMPTZ NOT NULL,
+  max_uses INT NOT NULL,
+  used_count INT NOT NULL DEFAULT 0
+);
+
+-- Collections
+CREATE TABLE IF NOT EXISTS collections (
+  id TEXT PRIMARY KEY,
+  owner_key TEXT NOT NULL,
+  name TEXT NOT NULL,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+-- Features (geometry and properties as JSONB)
+CREATE TABLE IF NOT EXISTS features (
+  id TEXT PRIMARY KEY,
+  collection_id TEXT NOT NULL REFERENCES collections(id) ON DELETE CASCADE,
+  owner_key TEXT NOT NULL,
+  type TEXT NOT NULL DEFAULT 'Feature',
+  geometry JSONB NOT NULL,
+  properties JSONB,
+  created_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+  updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX IF NOT EXISTS idx_collections_owner ON collections(owner_key);
+CREATE INDEX IF NOT EXISTS idx_features_collection ON features(collection_id);
+CREATE INDEX IF NOT EXISTS idx_features_owner ON features(owner_key);
+CREATE INDEX IF NOT EXISTS idx_challenges_expires ON challenges(expires_at);
+CREATE INDEX IF NOT EXISTS idx_sessions_expires ON sessions(expires_at);