fix(databases): remove leftover per-database Usage tab

[HarshMN2345]

Summary

• Follow-up to fix(databases): remove leftover top-level Usage tab #3128/fix(databases): remove leftover per-table Usage tab #3130: removes the per-database Usage tab (database-[database]/usage) and its g u command-center shortcut. It called tablesDB.getUsage(), an endpoint being dropped with the backend usage-endpoint removal.

Test plan

• bun run check passes with no new errors
• Database page no longer shows a Usage tab

[appwrite]

Console (appwrite/console)

Project ID: 688b7bf400350cbd60e9

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[greptile-apps]

Greptile Summary

This PR removes the leftover per-database Usage page. The main changes are:

• Removed the database-level Usage tab.
• Removed the database-level g u command-center shortcut.
• Deleted the /usage/[[period]] page and load function that called the removed usage endpoint.

Confidence Score: 5/5

This looks safe to merge.

• No blocking issues found in the changed code.

Important Files Changed

Filename	Overview
src/routes/(console)/project-[region]-[project]/databases/database-[database]/+layout.svelte	Removes the database-level command-center shortcut for the deleted Usage page.
src/routes/(console)/project-[region]-[project]/databases/database-[database]/header.svelte	Removes the database-level Usage tab from the database header.
src/routes/(console)/project-[region]-[project]/databases/database-[database]/usage/[[period]]/+page.svelte	Deletes the database-level Usage page component.
src/routes/(console)/project-[region]-[project]/databases/database-[database]/usage/[[period]]/+page.ts	Deletes the database-level Usage load function and its tablesDB.getUsage() call.

_{Reviews (1): Last reviewed commit: "fix(databases): remove leftover per-data..." | Re-trigger Greptile}

[HarshMN2345]

Superseded by #3134 — consolidating everything into a single PR.