fix(plugins): hooks.json schema — replace bare [] with {"hooks": {}}

[carlos-ecodigital]

Fixes #86.

Four plugins ship hooks/hooks.json containing a bare empty array []. Claude Code's plugin loader rejects this with a schema validation error, so the plugins install but fail to load:

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

Replacing with {"hooks": {}} matches the schema already shipping in investment-banking@0.2.0 and unblocks all four.

Files changed

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

Diff per file is one character: [] → {"hooks": {}}.

Verification

claude plugin marketplace add anthropics/financial-services-plugins
claude plugin install financial-analysis@claude-for-financial-services
claude plugin list
# Before: Status: ✘ failed to load
# After:  Status: ✔ enabled

Alternative considered

Deleting the empty hooks/ directories (suggested by @MkhIr in the issue thread) would also work and is arguably cleaner. Going with {"hooks": {}} here for consistency with investment-banking@0.2.0 — happy to switch to the directory-removal approach if maintainers prefer.