diff --git a/.env.example b/.env.example
index 43c21d2b2..507e76952 100644
--- a/.env.example
+++ b/.env.example
@@ -11,6 +11,7 @@ AUTH_SECRET=replace-with-random-secret
 
 # Public application URL. Required for production and self-hosted Auth.js.
 AUTH_URL=https://your-domain.com
+NEXTAUTH_URL=https://your-domain.com
 NEXT_PUBLIC_APP_URL=https://your-domain.com
 
 # Only enable behind a trusted reverse proxy with validated Host headers.
@@ -81,6 +82,14 @@ FAL_BASE_URL=https://fal.run
 FAL_MODEL=
 FAL_REALTIME_MODEL=
 
+# Realtime Canvas fallback providers.
+REPLICATE_API_TOKEN=
+BFL_API_KEY=
+BFL_KEY=
+BFL_BASE_URL=
+BFL_MODEL=
+RUNWARE_MODEL=
+
 # 3D / CAD providers.
 TRIPO_API_KEY=
 TRIPO_BASE_URL=https://api.tripo3d.ai/v2/openapi
@@ -96,6 +105,7 @@ ZOO_BASE_URL=https://api.zoo.dev
 
 # RUXA / video callback.
 RUXA_CALLBACK_URL=
+RUXA_VIDEO_CALLBACK_URL=
 
 # -----------------------------------------------------------------------------
 # Product Planning Integrations
@@ -111,6 +121,7 @@ TAOBAO_SALE_API_TOKEN=
 
 PRODUCT_PLANNING_DB_HOST=
 PRODUCT_PLANNING_DB_PORT=3306
+PRODUCT_PLANNING_DB_DATABASE=
 PRODUCT_PLANNING_DB_NAME=
 PRODUCT_PLANNING_DB_USER=
 PRODUCT_PLANNING_DB_PASSWORD=
@@ -143,6 +154,9 @@ AGENT_PSD_REMOTE_ASSET_CACHE_MAX_ENTRY_BYTES=
 AGENT_PSD_REMOTE_ASSET_CACHE_TTL_MS=
 AGENT_PSD_RENDER_PNG_COMPRESSION_LEVEL=6
 AGENT_PSD_RENDER_TASK_CONCURRENCY=2
+NEXT_PUBLIC_AGENT_STYLE_PERF_MONITOR=true
+NEXT_PUBLIC_AGENT_STYLE_PERF_SAMPLE_RATE=0.01
+NEXT_PUBLIC_AGENT_STYLE_OPTIMIZED_RENDER=true
 
 # -----------------------------------------------------------------------------
 # Logging / Observability
@@ -171,3 +185,6 @@ PORT=3001
 PLAYWRIGHT=false
 CI_PLAYWRIGHT=false
 PLAYWRIGHT_TEST_BASE_URL=http://127.0.0.1:3001
+SMOKE_BASE_URL=http://127.0.0.1:3001
+SMOKE_TIMEOUT_MS=20000
+DISABLE_PERF_GUARD_AUTO_INSTALL=false
diff --git a/README.md b/README.md
index 269e93c42..8799a0d1a 100644
--- a/README.md
+++ b/README.md
@@ -72,6 +72,7 @@ pnpm lint
 pnpm check:logs
 pnpm check:brand
 pnpm check:ci
+pnpm check:env
 pnpm check:artifacts
 pnpm check:quality
 pnpm clean:artifacts
diff --git a/docs/operations.md b/docs/operations.md
index f651d2a60..b929b1480 100644
--- a/docs/operations.md
+++ b/docs/operations.md
@@ -9,6 +9,7 @@ pnpm lint
 pnpm check:logs
 pnpm check:brand
 pnpm check:ci
+pnpm check:env
 pnpm exec tsc --noEmit --pretty false
 git diff --check
 pnpm check:artifacts
@@ -27,7 +28,7 @@ pnpm check:quality
 
 ## CI
 
-`.github/workflows/lint.yml` 是基础质量门禁，运行 `pnpm check:quality`，负责 lint、日志治理、公开交付面品牌治理、CI hygiene、类型检查、diff hygiene 和 tracked 污染物检查。
+`.github/workflows/lint.yml` 是基础质量门禁，运行 `pnpm check:quality`，负责 lint、日志治理、公开交付面品牌治理、CI hygiene、环境变量示例卫生、类型检查、diff hygiene 和 tracked 污染物检查。
 
 CI 和本地提交前检查复用同一个入口，避免规则漂移。
 
@@ -67,6 +68,14 @@ pnpm check:ci
 
 `pnpm check:ci` 会检查 workflow 是否保留只读权限、concurrency、固定 Ubuntu runner、固定 pnpm 版本、frozen install、cache v4，并禁止 `@latest`、`ubuntu-latest`、`--no-lint` 或构建 fallback 这类不稳定入口回流。
 
+## 环境变量示例治理
+
+```bash
+pnpm check:env
+```
+
+`pnpm check:env` 会检查 `.env.example` 是否包含关键部署变量、是否存在重复 key、是否把 token/password/API key 这类字段填成疑似真实密钥。
+
 ## 首页性能烟测
 
 ```bash
diff --git a/docs/release-readiness.md b/docs/release-readiness.md
index 54feb4b87..9a40317f9 100644
--- a/docs/release-readiness.md
+++ b/docs/release-readiness.md
@@ -13,7 +13,7 @@ SMOKE_BASE_URL=http://127.0.0.1:3001 pnpm smoke:routes
 
 预期：
 
-- `pnpm check:quality` 通过 lint、日志脱敏门禁、公开交付面品牌治理、CI hygiene、类型检查、diff hygiene 和 tracked 污染物检查。
+- `pnpm check:quality` 通过 lint、日志脱敏门禁、公开交付面品牌治理、CI hygiene、环境变量示例卫生、类型检查、diff hygiene 和 tracked 污染物检查。
 - `pnpm smoke:routes` 验证 `/` 返回 200。
 - `/classic` 和 `/chat/test-id` 重定向到 `/`。
 - `/settings` 未登录重定向到 `/login?callbackUrl=%2Fsettings`。
diff --git a/package.json b/package.json
index e1575d225..edc6c3506 100644
--- a/package.json
+++ b/package.json
@@ -14,7 +14,8 @@
     "check:artifacts": "node scripts/check-tracked-artifacts.mjs",
     "check:brand": "node scripts/check-brand-hygiene.mjs",
     "check:ci": "node scripts/check-ci-hygiene.mjs",
-    "check:quality": "pnpm lint && pnpm check:logs && pnpm check:brand && pnpm check:ci && pnpm exec tsc --noEmit --pretty false && git diff --check && pnpm check:artifacts",
+    "check:env": "node scripts/check-env-example.mjs",
+    "check:quality": "pnpm lint && pnpm check:logs && pnpm check:brand && pnpm check:ci && pnpm check:env && pnpm exec tsc --noEmit --pretty false && git diff --check && pnpm check:artifacts",
     "clean:artifacts": "node scripts/clean-local-artifacts.mjs",
     "smoke:routes": "node scripts/smoke-routes.mjs",
     "format": "pnpm exec ultracite fix",
diff --git a/scripts/check-env-example.mjs b/scripts/check-env-example.mjs
new file mode 100644
index 000000000..6c548ecc2
--- /dev/null
+++ b/scripts/check-env-example.mjs
@@ -0,0 +1,160 @@
+#!/usr/bin/env node
+
+import { readFileSync } from "node:fs";
+
+const envExamplePath = ".env.example";
+const source = readFileSync(envExamplePath, "utf8");
+const lines = source.split(/\r?\n/);
+
+const requiredKeys = [
+  "AUTH_SECRET",
+  "AUTH_URL",
+  "NEXTAUTH_URL",
+  "NEXT_PUBLIC_APP_URL",
+  "AUTH_TRUST_HOST",
+  "GOOGLE_CLIENT_ID",
+  "GOOGLE_CLIENT_SECRET",
+  "ADMIN_EMAIL",
+  "ADMIN_PASSWORD",
+  "RESEND_API_KEY",
+  "RESEND_FROM_EMAIL",
+  "EMAIL_VERIFICATION_SECRET",
+  "CRON_SECRET",
+  "POSTGRES_URL",
+  "POSTGRES_MAX_CONNECTIONS",
+  "POSTGRES_IDLE_TIMEOUT_SECONDS",
+  "POSTGRES_CONNECT_TIMEOUT_SECONDS",
+  "BLOB_READ_WRITE_TOKEN",
+  "S3_ENDPOINT",
+  "S3_REGION",
+  "S3_BUCKET",
+  "S3_ACCESS_KEY_ID",
+  "S3_SECRET_ACCESS_KEY",
+  "S3_PUBLIC_URL",
+  "AI_GATEWAY_API_KEY",
+  "NEXT_PUBLIC_DEFAULT_CHAT_MODEL",
+  "DASHSCOPE_BASE_URL",
+  "DASHSCOPE_API_KEY",
+  "GTP5_API_URL",
+  "GTP5_API_KEY",
+  "GTP5_MODEL",
+  "FAL_KEY",
+  "FAL_API_KEY",
+  "FAL_BASE_URL",
+  "FAL_MODEL",
+  "FAL_REALTIME_MODEL",
+  "REPLICATE_API_TOKEN",
+  "BFL_API_KEY",
+  "BFL_KEY",
+  "BFL_BASE_URL",
+  "BFL_MODEL",
+  "RUNWARE_MODEL",
+  "TRIPO_API_KEY",
+  "TRIPO_BASE_URL",
+  "WORLDLABS_API_KEY",
+  "WORLDLABS_BASE_URL",
+  "WORLDLABS_IMPORT_TOKEN",
+  "WORLDLABS_KEY_POOL_IMPORT_TOKEN",
+  "KITTYCAD_API_TOKEN",
+  "KITTYCAD_API_KEY",
+  "KITTYCAD_BASE_URL",
+  "ZOO_API_TOKEN",
+  "ZOO_BASE_URL",
+  "RUXA_CALLBACK_URL",
+  "RUXA_VIDEO_CALLBACK_URL",
+  "PRODUCT_PLANNING_DETAIL_PLUS_BASE_URL",
+  "PRODUCT_PLANNING_DETAIL_PLUS_INTERNAL_BASE_URL",
+  "PRODUCT_PLANNING_DETAIL_PLUS_API_KEY",
+  "PRODUCT_PLANNING_QA_TOKEN",
+  "TAOBAO_API_KEY",
+  "TAOBAO_API_SECRET",
+  "TAOBAO_SALE_API_TOKEN",
+  "PRODUCT_PLANNING_DB_HOST",
+  "PRODUCT_PLANNING_DB_PORT",
+  "PRODUCT_PLANNING_DB_DATABASE",
+  "PRODUCT_PLANNING_DB_NAME",
+  "PRODUCT_PLANNING_DB_USER",
+  "PRODUCT_PLANNING_DB_PASSWORD",
+  "PRODUCT_PLANNING_DB_CHARSET",
+  "PRODUCT_PLANNING_DB_SSL",
+  "CANVAS_IMAGE_TASK_CONCURRENCY",
+  "CANVAS_IMAGE_TASK_BATCH_DISPATCH_INTERVAL_MS",
+  "EXTERNAL_IMAGE_API_MAX_CONCURRENT",
+  "EXTERNAL_IMAGE_API_MAX_QUEUE",
+  "EXTERNAL_IMAGE_API_QUEUE_TIMEOUT_MS",
+  "AGENT_FORCE_LLM_PLANNER",
+  "AGENT_FORCE_QWEN3VL_FALLBACK",
+  "AGENT_IMAGE_GEN_LLM_OPTIMIZER_ENABLED",
+  "AGENT_LLM_PROMPT_OPTIMIZER_ENABLED",
+  "AGENT_REPLACEMENT_PARALLEL_WORKER_COUNT",
+  "AGENT_PSD_LOCAL_CACHE_DIR",
+  "AGENT_PSD_REMOTE_ASSET_CACHE_DISABLED",
+  "AGENT_PSD_REMOTE_ASSET_CACHE_MAX_BYTES",
+  "AGENT_PSD_REMOTE_ASSET_CACHE_MAX_ENTRY_BYTES",
+  "AGENT_PSD_REMOTE_ASSET_CACHE_TTL_MS",
+  "AGENT_PSD_RENDER_PNG_COMPRESSION_LEVEL",
+  "AGENT_PSD_RENDER_TASK_CONCURRENCY",
+  "NEXT_PUBLIC_AGENT_STYLE_PERF_MONITOR",
+  "NEXT_PUBLIC_AGENT_STYLE_PERF_SAMPLE_RATE",
+  "NEXT_PUBLIC_AGENT_STYLE_OPTIMIZED_RENDER",
+  "LOG_LEVEL",
+  "LOG_INCLUDE_STACK",
+  "NEXT_PUBLIC_ENABLE_CLIENT_LOGS",
+  "VIDEO_ARCHIVE_DELAY_HOURS",
+  "PORT",
+  "PLAYWRIGHT",
+  "CI_PLAYWRIGHT",
+  "PLAYWRIGHT_TEST_BASE_URL",
+  "SMOKE_BASE_URL",
+  "SMOKE_TIMEOUT_MS",
+  "DISABLE_PERF_GUARD_AUTO_INSTALL",
+];
+
+const secretLikeKey = /(SECRET|TOKEN|PASSWORD|API_KEY|ACCESS_KEY|CLIENT_SECRET|FAL_KEY|BFL_KEY|ZOO_API_TOKEN|KITTYCAD_API_TOKEN)$/;
+const suspiciousSecretValue =
+  /(sk-[A-Za-z0-9_-]{12,}|gh[pousr]_[A-Za-z0-9_]{20,}|xox[baprs]-[A-Za-z0-9-]{20,}|AKIA[0-9A-Z]{16}|eyJ[A-Za-z0-9_-]{20,})/;
+const allowedSecretPlaceholders = /^(|replace-with-[a-z0-9-]+|change-me[a-z0-9-]*|placeholder|example|your-[a-z0-9-]+)$/i;
+const parsed = new Map();
+const violations = [];
+
+lines.forEach((line, index) => {
+  if (!line || line.trim().startsWith("#")) {
+    return;
+  }
+
+  const match = line.match(/^([A-Z0-9_]+)=(.*)$/);
+  if (!match) {
+    violations.push(`${envExamplePath}:${index + 1}: invalid env assignment: ${line}`);
+    return;
+  }
+
+  const [, key, rawValue] = match;
+  const value = rawValue.trim();
+
+  if (parsed.has(key)) {
+    violations.push(`${envExamplePath}:${index + 1}: duplicate key: ${key}`);
+  }
+  parsed.set(key, { value, line: index + 1 });
+
+  if (secretLikeKey.test(key) && value && !allowedSecretPlaceholders.test(value)) {
+    violations.push(`${envExamplePath}:${index + 1}: secret-like key must use an empty value or placeholder: ${key}`);
+  }
+
+  if (suspiciousSecretValue.test(value)) {
+    violations.push(`${envExamplePath}:${index + 1}: suspicious real secret value detected: ${key}`);
+  }
+});
+
+for (const key of requiredKeys) {
+  if (!parsed.has(key)) {
+    violations.push(`${envExamplePath}: missing documented env key: ${key}`);
+  }
+}
+
+if (violations.length > 0) {
+  console.error("Environment example hygiene check failed.");
+  console.error(violations.join("\n"));
+  process.exit(1);
+}
+
+console.log(`Environment example hygiene check passed for ${parsed.size} keys.`);