fix: task master (tm) custom slash commands w/ proper syntax (#968)

* feat: add task master (tm) custom slash commands

Add comprehensive task management system integration via custom slash commands.
Includes commands for:
- Project initialization and setup
- Task parsing from PRD documents
- Task creation, update, and removal
- Subtask management
- Dependency tracking and validation
- Complexity analysis and task expansion
- Project status and reporting
- Workflow automation

This provides a complete task management workflow directly within Claude Code.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

* chore: add changeset

---------

Co-authored-by: neno-is-ooo <204701868+neno-is-ooo@users.noreply.github.com>
Co-authored-by: Claude <noreply@anthropic.com>

.claude/commands/tm/update/update-task.md

@@ -0,0 +1,72 @@
+Update tasks with intelligent field detection and bulk operations.
+
+Arguments: $ARGUMENTS
+
+## Intelligent Task Updates
+
+Parse arguments to determine update intent and execute smartly.
+
+### 1. **Natural Language Processing**
+
+Understand update requests like:
+- "mark 23 as done" → Update status to done
+- "increase priority of 45" → Set priority to high
+- "add dependency on 12 to task 34" → Add dependency
+- "tasks 20-25 need review" → Bulk status update
+- "all API tasks high priority" → Pattern-based update
+
+### 2. **Smart Field Detection**
+
+Automatically detect what to update:
+- Status keywords: done, complete, start, pause, review
+- Priority changes: urgent, high, low, deprioritize
+- Dependency updates: depends on, blocks, after
+- Assignment: assign to, owner, responsible
+- Time: estimate, spent, deadline
+
+### 3. **Bulk Operations**
+
+Support for multiple task updates:
+```
+Examples:
+- "complete tasks 12, 15, 18"
+- "all pending auth tasks to in-progress"
+- "increase priority for tasks blocking 45"
+- "defer all documentation tasks"
+```
+
+### 4. **Contextual Validation**
+
+Before updating, check:
+- Status transitions are valid
+- Dependencies don't create cycles
+- Priority changes make sense
+- Bulk updates won't break project flow
+
+Show preview:
+```
+Update Preview:
+─────────────────
+Tasks to update: #23, #24, #25
+Change: status → in-progress
+Impact: Will unblock tasks #30, #31
+Warning: Task #24 has unmet dependencies
+```
+
+### 5. **Smart Suggestions**
+
+Based on update:
+- Completing task? → Show newly unblocked tasks
+- Changing priority? → Show impact on sprint
+- Adding dependency? → Check for conflicts
+- Bulk update? → Show summary of changes
+
+### 6. **Workflow Integration**
+
+After updates:
+- Auto-update dependent task states
+- Trigger status recalculation
+- Update sprint/milestone progress
+- Log changes with context
+
+Result: Flexible, intelligent task updates with safety checks.