more detailed SDLC plan

_docs/00_templates/feature_dependency_matrix.md

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+# Feature Dependency Matrix
+
+Track feature dependencies to ensure proper implementation order.
+
+---
+
+## Active Features
+
+| Feature ID | Feature Name | Status | Dependencies | Blocks |
+|------------|--------------|--------|--------------|--------|
+| | | Draft/In Progress/Done | List IDs | List IDs |
+
+---
+
+## Dependency Rules
+
+### Status Definitions
+- **Draft**: Spec created, not started
+- **In Progress**: Development started
+- **Done**: Merged to dev, verified
+- **Blocked**: Waiting on dependencies
+
+### Dependency Types
+- **Hard**: Cannot start without dependency complete
+- **Soft**: Can mock dependency, integrate later
+- **API**: Depends on API contract (can parallelize with mock)
+- **Data**: Depends on data/schema (must be complete)
+
+---
+
+## Current Dependencies
+
+### [Feature A] depends on:
+| Dependency | Type | Status | Blocker? |
+|------------|------|--------|----------|
+| | Hard/Soft/API/Data | Done/In Progress | Yes/No |
+
+### [Feature B] depends on:
+| Dependency | Type | Status | Blocker? |
+|------------|------|--------|----------|
+| | | | |
+
+---
+
+## Dependency Graph
+
+```
+Feature A (Done)
+    └── Feature B (In Progress)
+        └── Feature D (Draft)
+    └── Feature C (Draft)
+
+Feature E (Done)
+    └── Feature F (In Progress)
+```
+
+---
+
+## Implementation Order
+
+Based on dependencies, recommended implementation order:
+
+1. **Phase 1** (No dependencies)
+   - [ ] Feature X
+   - [ ] Feature Y
+
+2. **Phase 2** (Depends on Phase 1)
+   - [ ] Feature Z (after X)
+   - [ ] Feature W (after Y)
+
+3. **Phase 3** (Depends on Phase 2)
+   - [ ] Feature V (after Z, W)
+
+---
+
+## Handling Blocked Features
+
+When a feature is blocked:
+
+1. **Identify** the blocking dependency
+2. **Escalate** if blocker is delayed
+3. **Consider** if feature can proceed with mocks
+4. **Document** any workarounds used
+5. **Schedule** integration when blocker completes
+
+---
+
+## Mock Strategy
+
+When using mocks for dependencies:
+
+| Feature | Mocked Dependency | Mock Type | Integration Task |
+|---------|-------------------|-----------|------------------|
+| | | Interface/Data/API | Link to task |
+
+---
+
+## Update Log
+
+| Date | Feature | Change | By |
+|------|---------|--------|-----|
+| | | Added/Updated/Completed | |
+