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/remove-subtask/remove-subtask.md

@@ -0,0 +1,84 @@
+Remove a subtask from its parent task.
+
+Arguments: $ARGUMENTS
+
+Parse subtask ID to remove, with option to convert to standalone task.
+
+## Removing Subtasks
+
+Remove a subtask and optionally convert it back to a standalone task.
+
+## Argument Parsing
+
+- "remove subtask 5.1"
+- "delete 5.1"
+- "convert 5.1 to task" → remove and convert
+- "5.1 standalone" → convert to standalone
+
+## Execution Options
+
+### 1. Delete Subtask
+```bash
+task-master remove-subtask --id=<parentId.subtaskId>
+```
+
+### 2. Convert to Standalone
+```bash
+task-master remove-subtask --id=<parentId.subtaskId> --convert
+```
+
+## Pre-Removal Checks
+
+1. **Validate Subtask**
+   - Verify subtask exists
+   - Check completion status
+   - Review dependencies
+
+2. **Impact Analysis**
+   - Other subtasks that depend on it
+   - Parent task implications
+   - Data that will be lost
+
+## Removal Process
+
+### For Deletion:
+1. Confirm if subtask has work done
+2. Update parent task estimates
+3. Remove subtask and its data
+4. Clean up dependencies
+
+### For Conversion:
+1. Assign new standalone task ID
+2. Preserve all task data
+3. Update dependency references
+4. Maintain task history
+
+## Smart Features
+
+- Warn if subtask is in-progress
+- Show impact on parent task
+- Preserve important data
+- Update related estimates
+
+## Example Flows
+
+```
+/project:tm/remove-subtask 5.1
+→ Warning: Subtask #5.1 is in-progress
+→ This will delete all subtask data
+→ Parent task #5 will be updated
+Confirm deletion? (y/n)
+
+/project:tm/remove-subtask 5.1 convert
+→ Converting subtask #5.1 to standalone task #89
+→ Preserved: All task data and history
+→ Updated: 2 dependency references
+→ New task #89 is now independent
+```
+
+## Post-Removal
+
+- Update parent task status
+- Recalculate estimates
+- Show updated hierarchy
+- Suggest next actions