feat: Claude Code slash commands for Task Master (#774)

* Fix Cursor deeplink installation with copy-paste instructions (#723)

* fix: expand-task (#755)

* docs: Update o3 model price (#751)

* docs: Auto-update and format models.md

* docs: Auto-update and format models.md

* feat: Add Claude Code task master commands

Adds Task Master slash commands for Claude Code under /project:tm/ namespace

---------

Co-authored-by: Joe Danziger <joe@ticc.net>
Co-authored-by: Ralph Khreish <35776126+Crunchyman-ralph@users.noreply.github.com>
Co-authored-by: Volodymyr Zahorniak <7808206+zahorniak@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: neno-is-ooo <204701868+neno-is-ooo@users.noreply.github.com>

.claude/commands/tm/models/index.md

@@ -0,0 +1,51 @@
+View current AI model configuration.
+
+## Model Configuration Display
+
+Shows the currently configured AI providers and models for Task Master.
+
+## Execution
+
+```bash
+task-master models
+```
+
+## Information Displayed
+
+1. **Main Provider**
+   - Model ID and name
+   - API key status (configured/missing)
+   - Usage: Primary task generation
+
+2. **Research Provider**
+   - Model ID and name  
+   - API key status
+   - Usage: Enhanced research mode
+
+3. **Fallback Provider**
+   - Model ID and name
+   - API key status
+   - Usage: Backup when main fails
+
+## Visual Status
+
+```
+Task Master AI Model Configuration
+━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━
+Main:     ✅ claude-3-5-sonnet (configured)
+Research: ✅ perplexity-sonar (configured)  
+Fallback: ⚠️  Not configured (optional)
+
+Available Models:
+- claude-3-5-sonnet
+- gpt-4-turbo
+- gpt-3.5-turbo
+- perplexity-sonar
+```
+
+## Next Actions
+
+Based on configuration:
+- If missing API keys → Suggest setup
+- If no research model → Explain benefits
+- If all configured → Show usage tips