chore: Standardize environment variable placeholder format in .env.example

.env.example

@@ -16,18 +16,18 @@
 
 # LiteLLM Master Key (REQUIRED — change in production!)
 # Generate with: openssl rand -hex 32
-LITELLM_MASTER_KEY=your-master-key-change-me
+LITELLM_MASTER_KEY=<your-litellm-master-key>
 
 # LiteLLM Salt Key (used for encryption)
 # Generate with: openssl rand -hex 32
-LITELLM_SALT_KEY=your-salt-change-me
+LITELLM_SALT_KEY=<your-litellm-salt-key>
 
 # LiteLLM Port
 LITELLM_PORT=4000
 
 # LiteLLM UI Credentials
-LITELLM_UI_USERNAME=admin
-LITELLM_UI_PASSWORD=your-ui-password-change-me
+LITELLM_UI_USERNAME=<your-litellm-username>
+LITELLM_UI_PASSWORD=<your-litellm-password>
 
 # ==============================================================================
 # PROVIDER API KEYS
@@ -40,24 +40,24 @@ LITELLM_UI_PASSWORD=your-ui-password-change-me
 # MiniMax API (PRIMARY - All Agents Default)
 # ------------------------------------------------------------------------------
 # Get your key from: https://platform.minimaxi.chat
-MINIMAX_API_KEY=your-minimax-key-here
+MINIMAX_API_KEY=<your-minimax-api-key>
 MINIMAX_API_BASE=https://api.minimaxi.chat/v1
 
 # ------------------------------------------------------------------------------
 # z.ai Coding API (FAILOVER - GLM-5)
 # ------------------------------------------------------------------------------
 # Endpoint: https://api.z.ai/api/coding/paas/v4
-ZAI_API_KEY=your-zai-key-here
+ZAI_API_KEY=<your-zai-api-key>
 ZAI_API_BASE=https://api.z.ai/api/coding/paas/v4
 
 # ==============================================================================
 # DATABASE CONFIGURATION
 # ==============================================================================
 
-POSTGRES_USER=heretek
-POSTGRES_PASSWORD=your-postgres-password-change-me
-POSTGRES_DB=heretek
-DATABASE_URL=postgresql://heretek:${POSTGRES_PASSWORD}@postgres:5432/heretek
+POSTGRES_USER=<your-postgres-user>
+POSTGRES_PASSWORD=<your-postgres-password>
+POSTGRES_DB=<your-postgres-database>
+DATABASE_URL=postgresql://${POSTGRES_USER}:${POSTGRES_PASSWORD}@postgres:5432/${POSTGRES_DB}
 
 # ==============================================================================
 # REDIS CONFIGURATION
@@ -66,7 +66,7 @@ DATABASE_URL=postgresql://heretek:${POSTGRES_PASSWORD}@postgres:5432/heretek
 REDIS_URL=redis://redis:6379/0
 
 # Redis authentication (REQUIRED for production)
-REDIS_PASSWORD=your-redis-password-change-me
+REDIS_PASSWORD=<your-redis-password>
 REDIS_USERNAME=default
 
 # Redis TLS configuration (enable for production)
@@ -281,11 +281,11 @@ LANGFUSE_ENABLED=true
 
 # Langfuse Public Key (generate or use existing)
 # For local deployment, retrieve from Langfuse UI after first startup
-LANGFUSE_PUBLIC_KEY=pk-lf-your-public-key-here
+LANGFUSE_PUBLIC_KEY=<your-langfuse-public-key>
 
 # Langfuse Secret Key (generate or use existing)
 # For local deployment, retrieve from Langfuse UI after first startup
-LANGFUSE_SECRET_KEY=sk-lf-your-secret-key-here
+LANGFUSE_SECRET_KEY=<your-langfuse-secret-key>
 
 # Langfuse Host
 # LOCAL DEPLOYMENT: Use http://langfuse:3000 (Docker network)
@@ -294,15 +294,15 @@ LANGFUSE_HOST=http://langfuse:3000
 
 # Langfuse Postgres Password (for local Langfuse deployment)
 # Generate with: openssl rand -base64 32
-LANGFUSE_POSTGRES_PASSWORD=your-langfuse-postgres-password-change-me
+LANGFUSE_POSTGRES_PASSWORD=<your-langfuse-postgres-password>
 
 # Langfuse Salt (for session token hashing)
 # Generate with: openssl rand -hex 32
-LANGFUSE_SALT=your-langfuse-salt-change-me
+LANGFUSE_SALT=<your-langfuse-salt>
 
 # Langfuse NextAuth Secret (for authentication)
 # Generate with: openssl rand -hex 32
-LANGFUSE_NEXTAUTH_SECRET=your-nextauth-secret-change-me
+LANGFUSE_NEXTAUTH_SECRET=<your-nextauth-secret>
 
 # ==============================================================================
 # LANGFUSE V3 - CLICKHOUSE CONFIGURATION
@@ -315,7 +315,7 @@ LANGFUSE_NEXTAUTH_SECRET=your-nextauth-secret-change-me
 
 # ClickHouse HTTP URL (for queries and data access)
 # Format: http://user:password@clickhouse:8123/database
-CLICKHOUSE_URL=http://default:your-clickhouse-password-change-me@clickhouse:8123/default
+CLICKHOUSE_URL=http://default:<your-clickhouse-password>@clickhouse:8123/default
 
 # ClickHouse Migration URL (native TCP protocol for migrations)
 # Format: clickhouse://clickhouse:9000
@@ -326,7 +326,7 @@ CLICKHOUSE_DB_DEFAULT=default
 
 # ClickHouse Password
 # Generate with: openssl rand -base64 16
-CLICKHOUSE_PASSWORD=your-clickhouse-password-change-me
+CLICKHOUSE_PASSWORD=<your-clickhouse-password>
 
 # ==============================================================================
 # VOLUME PATHS (for persistence)