FRE-4533: Merge apps/{api,web,mobile} and shared-db into ShieldAI repo

Merge FrenoCorp apps into ShieldAI packages/:
- packages/api: merged routes (notifications), middleware (auth, rate-limit, error, logging), config, services (darkwatch, spamshield, voiceprint), tests
- packages/web: new SolidJS web app stub
- packages/mobile: new SolidJS mobile app stub
- packages/shared-db: new Prisma DB package (separate from existing packages/db)
- pnpm-workspace.yaml: restored (apps/* removed, already covered by packages/*)

Next: reconcile packages/shared-db with packages/db, and fix server.ts correlationRoutes import

packages/api/src/config/api.config.ts

@@ -0,0 +1,55 @@
+import { z } from 'zod';
+
+// Environment variables
+const envSchema = z.object({
+  NODE_ENV: z.enum(['development', 'production', 'test']).default('development'),
+  PORT: z.string().transform(Number).default(3000),
+  HOST: z.string().default('0.0.0.0'),
+  API_RATE_LIMIT_WINDOW: z.string().transform(Number).default(60000), // 1 minute
+  API_RATE_LIMIT_MAX_REQUESTS: z.string().transform(Number).default(100),
+  CORS_ORIGIN: z.string().default('http://localhost:5173'),
+});
+
+export const apiEnv = envSchema.parse({
+  NODE_ENV: process.env.NODE_ENV,
+  PORT: process.env.PORT,
+  HOST: process.env.HOST,
+  API_RATE_LIMIT_WINDOW: process.env.API_RATE_LIMIT_WINDOW,
+  API_RATE_LIMIT_MAX_REQUESTS: process.env.API_RATE_LIMIT_MAX_REQUESTS,
+  CORS_ORIGIN: process.env.CORS_ORIGIN,
+});
+
+// Rate limit configuration by tier
+export const rateLimitConfig = {
+  basic: {
+    windowMs: 60000, // 1 minute
+    maxRequests: 100,
+  },
+  plus: {
+    windowMs: 60000,
+    maxRequests: 500,
+  },
+  premium: {
+    windowMs: 60000,
+    maxRequests: 2000,
+  },
+};
+
+// API versioning configuration
+export const apiVersioning = {
+  defaultVersion: '1',
+  headerName: 'X-API-Version',
+  queryParam: 'api-version',
+};
+
+// Logging configuration
+export const loggingConfig = {
+  level: apiEnv.NODE_ENV === 'production' ? 'info' : 'debug',
+  transport: apiEnv.NODE_ENV === 'development' ? {
+    target: 'pino-pretty',
+    options: {
+      colorize: true,
+      translateTime: true,
+    },
+  } : undefined,
+};

packages/api/src/config/redis.ts

@@ -0,0 +1,18 @@
+import { Redis } from 'ioredis';
+
+const redisHost = process.env.REDIS_HOST || 'localhost';
+const redisPort = parseInt(process.env.REDIS_PORT || '6379', 10);
+
+export const redis = new Redis({
+  host: redisHost,
+  port: redisPort,
+  retryStrategy: (times: number) => Math.min(times * 50, 2000),
+  lazyConnect: true,
+});
+
+export async function getRedisConnection(): Promise<Redis> {
+  if (redis.status === 'wait' || redis.status === 'connecting') {
+    await redis.connect();
+  }
+  return redis;
+}