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>

.github/DISCUSSION_TEMPLATE/ideas.yml

@@ -0,0 +1,21 @@
+body:
+  - type: markdown
+    attributes:
+      value: |
+        Thank you for taking the time to file a feature request. Please fill out this form as completely as possible.
+  - type: textarea
+    attributes:
+      label: Describe the feature you'd like to request
+      description: Please describe the feature as clear and concise as possible. Remember to add context as to why you believe this feature is needed.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Describe the solution you'd like to see
+      description: Please describe the solution you would like to see. Adding example usage is a good way to provide context.
+    validations:
+      required: true
+  - type: textarea
+    attributes:
+      label: Additional information
+      description: Add any other information related to the feature here. If your feature request is related to any issues or discussions, link them here.