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/docs/TEMPLATE-feature.md

@@ -0,0 +1,60 @@
+# Feature Name
+
+> Brief one-line description of what this feature does
+
+## Overview
+
+Explain what this feature does and why it exists. Include:
+- The problem it solves
+- Key capabilities
+- When to use it
+
+## Usage
+
+### Basic Example
+
+```typescript
+// Code example showing basic usage
+```
+
+### Advanced Example
+
+```typescript
+// Code example showing advanced/common patterns
+```
+
+## Configuration
+
+| Option | Type | Default | Description |
+|--------|------|---------|-------------|
+| `option1` | `string` | `""` | Description of option |
+| `option2` | `boolean` | `false` | Description of option |
+
+## Components
+
+List the main components involved in this feature:
+
+| Component | Location | Purpose |
+|-----------|----------|---------|
+| `ComponentName` | `src/components/ComponentName.vue` | Brief description |
+
+## Data Flow
+
+Describe how data flows through this feature (if applicable):
+
+```
+User Action → Component → Store → API → Database
+                ↑                    ↓
+              UI Update ← ← ← ← Response
+```
+
+## Related
+
+- [Related Feature](./feature-related.md)
+- [Related Component](./component-related.md)
+
+## Changelog
+
+| Date | Change |
+|------|--------|
+| YYYY-MM-DD | Initial implementation |