fix(conductor): add allowed-tools to commands and simplify marketplace entry

Based on research of official plugins:
- Add allowed-tools array to all 5 commands (required field in working plugins)
- Simplify marketplace.json entry to match official format (minimal fields, auto-discovery)
- Remove explicit commands/agents/skills arrays (rely on auto-discovery like official plugins)

Version: 1.0.6

plugins/conductor/commands/new-track.md

@@ -1,6 +1,7 @@
 ---
 description: "Create a new track with specification and phased implementation plan"
 argument-hint: "<feature|bug|chore|refactor> <name>"
+allowed-tools: ["Read", "Write", "Edit", "Glob", "Grep", "Bash", "AskUserQuestion"]
 ---
 
 # New Track