Unify and streamline profile system architecture (#853)

* move claude rules and commands to assets/claude

* update claude profile to copy assets/claude to .claude

* fix formatting

* feat(profiles): Implement unified profile system

- Convert Claude and Codex profiles to use createProfile() factory
- Remove simple vs complex profile distinction in rule transformer
- Unify convertAllRulesToProfileRules() to handle all profiles consistently
- Fix mcpConfigPath construction in base-profile.js for null mcpConfigName
- Update terminology from 'simpleProfiles' to 'assetOnlyProfiles' throughout
- Ensure Claude .claude directory copying works in both CLI and MCP contexts
- All profiles now follow same execution flow with proper lifecycle functions

Changes:
- src/profiles/claude.js: Convert to createProfile() factory pattern
- src/profiles/codex.js: Convert to createProfile() factory pattern
- src/utils/rule-transformer.js: Unified profile handling logic
- src/utils/profiles.js: Remove simple profile categorization
- src/profiles/base-profile.js: Fix mcpConfigPath construction
- scripts/modules/commands.js: Update variable naming
- tests/: Update all tests for unified system and terminology

Fixes Claude profile asset copying issue in MCP context.
All tests passing (617 passed, 11 skipped).

* re-checkin claude files

* fix formatting

* chore: clean up test Claude rules files

* chore: add changeset for unified profile system

* add claude files back

* add changeset

* restore proper gitignore

* remove claude agents file from root

* remove incorrect doc

* simplify profiles and update tests

* update changeset

* update changeset

* remove profile specific code

* streamline profiles with defaults and update tests

* update changeset

* add newline at end of gitignore

* restore changes

* streamline profiles with defaults; update tests and add vscode test

* update rule profile tests

* update wording for clearer profile management

* refactor and clarify terminology

* use original projectRoot var name

* revert param desc

* use updated claude assets from neno

* add "YOUR_" before api key here

* streamline codex profile

* add gemini profile

* update gemini profile

* update tests

* relocate function

* update rules interactive setup Gemini desc

* remove duplicative code

* add comma

assets/claude/commands/tm/clear-subtasks/clear-subtasks.md

@@ -0,0 +1,86 @@
+Clear all subtasks from a specific task.
+
+Arguments: $ARGUMENTS (task ID)
+
+Remove all subtasks from a parent task at once.
+
+## Clearing Subtasks
+
+Bulk removal of all subtasks from a parent task.
+
+## Execution
+
+```bash
+task-master clear-subtasks --id=<task-id>
+```
+
+## Pre-Clear Analysis
+
+1. **Subtask Summary**
+   - Number of subtasks
+   - Completion status of each
+   - Work already done
+   - Dependencies affected
+
+2. **Impact Assessment**
+   - Data that will be lost
+   - Dependencies to be removed
+   - Effect on project timeline
+   - Parent task implications
+
+## Confirmation Required
+
+```
+Clear Subtasks Confirmation
+━━━━━━━━━━━━━━━━━━━━━━━━━
+Parent Task: #5 "Implement user authentication"
+Subtasks to remove: 4
+- #5.1 "Setup auth framework" (done)
+- #5.2 "Create login form" (in-progress)
+- #5.3 "Add validation" (pending)
+- #5.4 "Write tests" (pending)
+
+⚠️  This will permanently delete all subtask data
+Continue? (y/n)
+```
+
+## Smart Features
+
+- Option to convert to standalone tasks
+- Backup task data before clearing
+- Preserve completed work history
+- Update parent task appropriately
+
+## Process
+
+1. List all subtasks for confirmation
+2. Check for in-progress work
+3. Remove all subtasks
+4. Update parent task
+5. Clean up dependencies
+
+## Alternative Options
+
+Suggest alternatives:
+- Convert important subtasks to tasks
+- Keep completed subtasks
+- Archive instead of delete
+- Export subtask data first
+
+## Post-Clear
+
+- Show updated parent task
+- Recalculate time estimates
+- Update task complexity
+- Suggest next steps
+
+## Example
+
+```
+/project:tm/clear-subtasks 5
+→ Found 4 subtasks to remove
+→ Warning: Subtask #5.2 is in-progress
+→ Cleared all subtasks from task #5
+→ Updated parent task estimates
+→ Suggestion: Consider re-expanding with better breakdown
+```