Wire uiHints from plugin manifests into the TUI wizard so sandbox/tool
plugins get interactive config prompts during openclaw onboard (manual
flow) and openclaw configure --section plugins.
- Add setup.plugin-config.ts: discovers plugins with non-advanced uiHints,
generates type-aware prompts (enum→select, boolean→confirm, array→csv,
string/number→text) from jsonSchema + uiHints metadata.
- Onboard: new step after Skills, before Hooks (skipped in QuickStart).
Only shows plugins with unconfigured fields.
- Configure: new 'plugins' section in the section menu. Shows all
configurable plugins with configured/total field counts.
Closes#60030
