Fix hooks.json schema in 4 vertical plugins

[phschultz1]

Summary

Four vertical plugins ship hooks/hooks.json as an empty JSON array ([]), which fails Claude Code's manifest schema validation:

Hook load failed: [
  {
    "expected": "object",
    "code": "invalid_type",
    "path": [],
    "message": "Invalid input: expected object, received array"
  }
]

Result: financial-analysis, equity-research, private-equity, and wealth-management install successfully but show ✘ failed to load in claude plugin list, and their skills/commands never surface in the session.

investment-banking already has the correct shape ({"hooks": {}}); this PR aligns the other four with that convention.

Files changed

• plugins/vertical-plugins/financial-analysis/hooks/hooks.json
• plugins/vertical-plugins/equity-research/hooks/hooks.json
• plugins/vertical-plugins/private-equity/hooks/hooks.json
• plugins/vertical-plugins/wealth-management/hooks/hooks.json

Each goes from [] to:

{
  "hooks": {}
}

Reproduces on

• Claude Code 2.1.128
• Marketplace install via claude plugin marketplace add anthropics/claude-for-financial-services followed by claude plugin install <plugin>@claude-for-financial-services

Test plan

• claude plugin install financial-analysis@claude-for-financial-services → Status: ✘ failed to load before the fix
• After applying the fix to ~/.claude/plugins/cache/.../hooks/hooks.json → Status: ✔ enabled, slash commands surface in next session
• No-op for investment-banking (already correct)
• python3 scripts/check.py should pass (no new content added — only manifest shape correction)

🤖 Generated with Claude Code

[mihilmy]

Thanks for catching this and taking the time to send a fix! 🙏 This was reported by many contributors — the underlying bug is now resolved in #232, which repairs all four broken hooks.json files ([] → {"hooks": {}}) and adds a plugin-validate CI check (the official claude plugin validate) so a malformed manifest can't regress again. Closing as superseded by #232. Really appreciate the contribution.