feat: turbostarter boilerplate

Production-ready Next.js boilerplate with:
- Runtime env validation (fail-fast on missing vars)
- Feature-gated config (S3, Stripe, email, OAuth)
- Docker + Coolify deployment pipeline
- PostgreSQL + pgvector, MinIO S3, Better Auth
- TypeScript strict mode (no ignoreBuildErrors)
- i18n (en/es), AI modules, billing, monitoring

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.context/turbostarter-framework-context/sections/ai/docs/deepseek.md

@@ -0,0 +1,85 @@
+---
+title: DeepSeek
+description: Integrate DeepSeek's powerful AI models into your applications with minimal setup.
+url: /ai/docs/deepseek
+---
+
+# DeepSeek
+
+The [DeepSeek](https://www.deepseek.com/) provider delivers access to DeepSeek's advanced AI models through the AI SDK, bringing reasoning capabilities to your applications.
+
+![DeepSeek](/images/docs/ai/providers/deepseek.webp)
+
+## Setup
+
+<Steps>
+  <Step>
+    ### Generate API Key
+
+    Visit the [DeepSeek Platform](https://platform.deepseek.com/) and navigate to the API keys section to create your personal secret key.
+  </Step>
+
+  <Step>
+    ### Add API Key to Environment
+
+    Add your generated API key to your project's `.env` file (e.g., in `apps/web`):
+
+    ```bash title=".env"
+    DEEPSEEK_API_KEY=your-api-key
+    ```
+  </Step>
+
+  <Step>
+    ### Configure Provider (Optional)
+
+    The starter kit automatically utilizes the `DEEPSEEK_API_KEY` environment variable. For advanced configurations, consult the comprehensive [AI SDK DeepSeek documentation](https://sdk.vercel.ai/providers/ai-sdk-providers/deepseek#provider-instance).
+  </Step>
+</Steps>
+
+## Features
+
+<Cards>
+  <Card title="Chat Models" href="https://sdk.vercel.ai/providers/ai-sdk-providers/deepseek#language-models">
+    Utilize DeepSeek's language models, known for their deep reasoning
+    capabilities, for tasks like text generation, translation, and
+    conversational AI applications.
+  </Card>
+
+  <Card title="Reasoning" href="https://platform.deepseek.com/">
+    Tap into models with reasoning abilities designed specifically for complex
+    problem-solving, logical deduction, and analytical tasks that require deep
+    understanding.
+  </Card>
+
+  <Card title="Tool Usage / Function Calling" href="https://sdk.vercel.ai/providers/ai-sdk-providers/deepseek#tool-usage--function-calling">
+    Enable language models to interact with external tools and functions,
+    allowing for more complex and automated task execution.
+  </Card>
+</Cards>
+
+## Use Cases
+
+<Cards>
+  <Card title="AI Chatbot">
+    Create intelligent chatbots that engage in natural, meaningful conversations
+    and assist users with a wide range of tasks. Experience this capability in
+    our [Chat Demo](/ai/docs/chat).
+  </Card>
+
+  <Card title="Content Generation">
+    Produce diverse, high-quality creative text content including articles,
+    summaries, code explanations, and marketing copy with language
+    understanding.
+  </Card>
+
+  <Card title="Automated Workflows">
+    Integrate language models with other tools via function calling to automate
+    processes like data analysis or report generation.
+  </Card>
+</Cards>
+
+## Links
+
+* [DeepSeek Website](https://www.deepseek.com/)
+* [DeepSeek Platform](https://platform.deepseek.com/)
+* [AI SDK - DeepSeek Provider Docs](https://sdk.vercel.ai/providers/ai-sdk-providers/deepseek)