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/models/setup-models.md

@@ -0,0 +1,51 @@
+Run interactive setup to configure AI models.
+
+## Interactive Model Configuration
+
+Guides you through setting up AI providers for Task Master.
+
+## Execution
+
+```bash
+task-master models --setup
+```
+
+## Setup Process
+
+1. **Environment Check**
+   - Detect existing API keys
+   - Show current configuration
+   - Identify missing providers
+
+2. **Provider Selection**
+   - Choose main provider (required)
+   - Select research provider (recommended)
+   - Configure fallback (optional)
+
+3. **API Key Configuration**
+   - Prompt for missing keys
+   - Validate key format
+   - Test connectivity
+   - Save configuration
+
+## Smart Recommendations
+
+Based on your needs:
+- **For best results**: Claude + Perplexity
+- **Budget conscious**: GPT-3.5 + Perplexity
+- **Maximum capability**: GPT-4 + Perplexity + Claude fallback
+
+## Configuration Storage
+
+Keys can be stored in:
+1. Environment variables (recommended)
+2. `.env` file in project
+3. Global `.taskmaster/config`
+
+## Post-Setup
+
+After configuration:
+- Test each provider
+- Show usage examples
+- Suggest next steps
+- Verify parse-prd works