Initial extract: templates + methodology guide from Ideation

Public, version-controlled source of truth for TeamIDE's project
templates, coding conventions, and the build-plan → PM scaffolding
rules. Mounted read-only by TeamIDE's planner agent at runtime.

Extracted from the personal Ideation repo as a precondition for
workspace-projects-agent-spec.md §9.4. Personal Ideation stays
private; this repo holds only the publishable methodology.

templates/.gitignore

@@ -0,0 +1,32 @@
+# Environment files
+.env
+.env.*
+!.env.example
+
+# Nhost secrets
+app/nhost/.secrets
+
+# Node
+node_modules/
+npm-debug.log*
+yarn-error.log*
+# Note: Never ignore lock files (package-lock.json, yarn.lock, pnpm-lock.yaml)
+# They are required for reproducible builds
+
+# Build output
+dist/
+.quasar/
+
+# IDE
+.idea/
+.vscode/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Logs
+*.log
+logs/