feat(ipuaro): implement Redis storage module (v0.2.0)

- Add RedisClient with connection management and AOF config
- Add RedisStorage implementing full IStorage interface
- Add Redis key schema for project and session data
- Add generateProjectName() utility
- Add 68 unit tests for Redis module (159 total)
- Update ESLint: no-unnecessary-type-parameters as warn

packages/ipuaro/src/infrastructure/storage/RedisClient.ts

@@ -0,0 +1,119 @@
+import { Redis } from "ioredis"
+import type { RedisConfig } from "../../shared/constants/config.js"
+import { IpuaroError } from "../../shared/errors/IpuaroError.js"
+
+/**
+ * Redis client wrapper with connection management.
+ * Handles connection lifecycle and AOF configuration.
+ */
+export class RedisClient {
+    private client: Redis | null = null
+    private readonly config: RedisConfig
+    private connected = false
+
+    constructor(config: RedisConfig) {
+        this.config = config
+    }
+
+    /**
+     * Connect to Redis server.
+     * Configures AOF persistence on successful connection.
+     */
+    async connect(): Promise<void> {
+        if (this.connected && this.client) {
+            return
+        }
+
+        try {
+            this.client = new Redis({
+                host: this.config.host,
+                port: this.config.port,
+                db: this.config.db,
+                password: this.config.password,
+                keyPrefix: this.config.keyPrefix,
+                lazyConnect: true,
+                retryStrategy: (times: number): number | null => {
+                    if (times > 3) {
+                        return null
+                    }
+                    return Math.min(times * 200, 1000)
+                },
+                maxRetriesPerRequest: 3,
+                enableReadyCheck: true,
+            })
+
+            await this.client.connect()
+            await this.configureAOF()
+            this.connected = true
+        } catch (error) {
+            this.connected = false
+            this.client = null
+            const message = error instanceof Error ? error.message : "Unknown error"
+            throw IpuaroError.redis(`Failed to connect to Redis: ${message}`)
+        }
+    }
+
+    /**
+     * Disconnect from Redis server.
+     */
+    async disconnect(): Promise<void> {
+        if (this.client) {
+            await this.client.quit()
+            this.client = null
+            this.connected = false
+        }
+    }
+
+    /**
+     * Check if connected to Redis.
+     */
+    isConnected(): boolean {
+        return this.connected && this.client !== null && this.client.status === "ready"
+    }
+
+    /**
+     * Get the underlying Redis client.
+     * @throws IpuaroError if not connected
+     */
+    getClient(): Redis {
+        if (!this.client || !this.connected) {
+            throw IpuaroError.redis("Redis client is not connected")
+        }
+        return this.client
+    }
+
+    /**
+     * Execute a health check ping.
+     */
+    async ping(): Promise<boolean> {
+        if (!this.client) {
+            return false
+        }
+        try {
+            const result = await this.client.ping()
+            return result === "PONG"
+        } catch {
+            return false
+        }
+    }
+
+    /**
+     * Configure AOF (Append Only File) persistence.
+     * AOF provides better durability by logging every write operation.
+     */
+    private async configureAOF(): Promise<void> {
+        if (!this.client) {
+            return
+        }
+
+        try {
+            await this.client.config("SET", "appendonly", "yes")
+            await this.client.config("SET", "appendfsync", "everysec")
+        } catch {
+            /*
+             * AOF config may fail if Redis doesn't allow CONFIG SET.
+             * This is non-fatal - persistence will still work with default settings.
+             */
+        }
+    }
+}