Search owned domains and assets from the command palette

Imported from GitHub pull request El-SaMa/oma#128 by @El-SaMa.

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Summary

• Customers can type a domain, site, invoice number, or ticket reference in Cmd/Ctrl+K and jump straight to it.
• Adds a read-only oma.search platform tool (REST and MCP) that queries the current org with SQL ILIKE.
• Navigation jump-to still works; owned-asset hits appear first, grouped by type.

Test plan

• Open the client portal, press Cmd/Ctrl+K, type part of an owned domain name, and open the domain toolkit.
• Search a website/service primary domain and land on /services/{id}.
• Search an invoice number and a ticket subject/reference.
• Confirm a nav-only query (for example Settings) still works, and an empty match shows the no-results copy.
• pnpm --filter @oma/core-api test src/org-search.test.ts and pnpm --filter @oma/web i18n:check.