Implement programmer agent system and consolidate agent infrastructure

Programmer Agent System:
- Add programmer-orchestrator (Opus) for workflow coordination
- Add code-planner (Sonnet) for design and planning
- Add code-implementer (Sonnet) for writing code
- Add code-reviewer (Sonnet) for quality review
- Add /programmer command and project registration skill
- Add state files for preferences and project context

Agent Infrastructure:
- Add master-orchestrator and linux-sysadmin agents
- Restructure skills to use SKILL.md subdirectory format
- Convert workflows from markdown to YAML format
- Add commands for k8s and sysadmin domains
- Add shared state files (model-policy, autonomy-levels, system-instructions)
- Add PA memory system (decisions, preferences, projects, facts)

Cleanup:
- Remove deprecated markdown skills and workflows
- Remove crontab example (moved to workflows)

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

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

workflows/validate-agent-format.yaml

@@ -0,0 +1,62 @@
+name: validate-agent-format
+description: Validate YAML frontmatter in all agent definition files
+trigger:
+  - manual
+
+inputs: {}
+
+steps:
+  - name: scan-agent-files
+    description: Find all agent definition files
+    command: ls -1 ~/.claude/agents/*.md
+
+  - name: validate-frontmatter
+    description: Check each agent file for required YAML frontmatter
+    for_each: "{{ steps.scan-agent-files.output }}"
+    validation:
+      - name: has-frontmatter
+        check: "File starts with '---' delimiter"
+        required: true
+
+      - name: has-name-field
+        check: "YAML contains 'name:' field"
+        required: true
+
+      - name: has-description-field
+        check: "YAML contains 'description:' field"
+        required: true
+
+      - name: has-model-field
+        check: "YAML contains 'model:' field"
+        required: true
+
+      - name: has-tools-field
+        check: "YAML contains 'tools:' field"
+        required: true
+
+      - name: valid-model-value
+        check: "model value is one of: haiku, sonnet, opus"
+        required: true
+
+  - name: report-results
+    description: Generate validation report
+    output:
+      format: table
+      columns:
+        - file
+        - has_frontmatter
+        - has_name
+        - has_description
+        - has_model
+        - has_tools
+        - valid_model
+        - status
+
+success_criteria:
+  - all_files_have_frontmatter: true
+  - all_required_fields_present: true
+  - all_model_values_valid: true
+
+on_failure:
+  - report: List files with missing or invalid frontmatter
+  - suggest: Provide exact frontmatter template for each failing file