feat(hooks): use han wrap-subagent-context for PreToolUse injection

- Add PreToolUse hook for Task|Skill using han hook wrap-subagent-context
- Remove SubagentPrompt hook from han-plugin.yml (now handled by hooks.json)
- Fix CLAUDE_LOCAL_PLUGIN_DIR -> CLAUDE_PLUGIN_ROOT
- Fix timeouts from milliseconds to seconds

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

Author: jwaldrip

.claude-plugin/hooks.json

@@ -7,8 +7,18 @@
         "hooks": [
           {
             "type": "command",
-            "command": "bash \"${CLAUDE_LOCAL_PLUGIN_DIR}/hooks/redirect-plan-mode.sh\"",
-            "timeout": 5000
+            "command": "bash \"${CLAUDE_PLUGIN_ROOT}/hooks/redirect-plan-mode.sh\"",
+            "timeout": 5
+          }
+        ]
+      },
+      {
+        "matcher": "Task|Skill",
+        "hooks": [
+          {
+            "type": "command",
+            "command": "han hook wrap-subagent-context --context-command 'bash \"${CLAUDE_PLUGIN_ROOT}/hooks/subagent-context.sh\"'",
+            "timeout": 30
           }
         ]
       }

han-plugin.yml

@@ -12,19 +12,8 @@ hooks:
     event: SessionStart
     description: Inject AI-DLC iteration context (hat, intent, criteria, scratchpad)
 
-  # SubagentPrompt hook - provides AI-DLC context for subagent injection
-  # Context is gathered by core's PreToolUse hook (han hook inject-subagent-context)
-  # and injected into Task and Skill tool prompts automatically.
-  #
-  # Optional: Use tool_filter to limit which tools receive this context:
-  #   tool_filter: [Task]        # Only inject for Task tool (subagents)
-  #   tool_filter: [Skill]       # Only inject for Skill tool
-  #   tool_filter: [Task, Skill] # Both (default behavior if omitted)
-  subagent-context:
-    command: bash "${CLAUDE_PLUGIN_ROOT}/hooks/subagent-context.sh"
-    event: SubagentPrompt
-    description: Provide AI-DLC intent, hat, and workflow context for subagent injection
-    # No tool_filter = applies to both Task and Skill
+  # Subagent context injection is now handled by .claude-plugin/hooks.json
+  # using han hook wrap-subagent-context for proper JSON output
 
   iterate:
     command: bash "${CLAUDE_PLUGIN_ROOT}/hooks/enforce-iteration.sh"