Fix subagent_type in spawn-pr-fixes and review-pr commands

- spawn-pr-fixes: "general-purpose" → "pr-fixer"
- review-pr: Added explicit subagent_type: "software-architect"

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

commands/review-pr.md

@@ -30,13 +30,12 @@ Review the changes and provide feedback on:
 Spawn the software-architect agent for architectural analysis:
 
 ```
-Use the Task tool to spawn the software-architect agent:
-@~/.claude/agents/software-architect/agent.md
-
-Provide context:
-ANALYSIS_TYPE: pr-review
-TARGET: <pr-number>
-CONTEXT: [Include the PR diff and description]
+Task tool with:
+  - subagent_type: "software-architect"
+  - prompt: |
+      ANALYSIS_TYPE: pr-review
+      TARGET: <pr-number>
+      CONTEXT: [Include the PR diff and description]
 ```
 
 The architecture review checks:

commands/spawn-pr-fixes.md

@@ -49,7 +49,7 @@ Look for PRs where:
 2. Spawn background agent using Task tool:
    ```
    Task tool with:
-     - subagent_type: "general-purpose"
+     - subagent_type: "pr-fixer"
      - run_in_background: true
      - prompt: See agent prompt below
    ```