fix(dev-keys): remove dev key creation and add deprecation notice

[atharvadeosthale]

What does this PR do?

Dev key creation is paused as of July 22, 2026 (changelog); existing dev keys keep working until September 1, 2026. This PR removes every dev-key creation entry point in the console and adds a deprecation notice on the Dev keys tab.

• Removes the "Create dev key" header button and its creation modal (dev-keys/action.svelte deleted)
• Replaces the empty-state create action with a Documentation-only empty state titled "No dev keys"
• Removes the "Create Dev Key" command palette entry
• Adds a warning alert above the dev keys list stating the deprecation dates and linking the changelog entry
• setOverviewAction now accepts null so the tab renders no header action

Test Plan

• Open Project → Overview → Integrations → Dev keys
• Header shows no "Create dev key" button; deprecation alert with the July 22 / September 1, 2026 dates shows above the list/empty state
• Empty state offers only the Documentation link
• Command palette no longer offers "Create Dev Key"
• API keys tab unchanged (create button and empty-state action still work)

Related PRs and Issues

• Changelog: https://appwrite.io/changelog/entry/2026-07-22

Checklist

• Have you read the Contributing Guidelines on issues?
• If the PR includes a visual change, have you attached screenshots?

[greptile-apps]

Greptile Summary

This PR removes Dev key creation from the console and adds a deprecation notice. The main changes are:

• Removes the Dev key creation modal and related store.
• Removes Dev key creation from the header, empty state, and command palette.
• Adds a deprecation warning and documentation-only empty state.
• Allows the overview header action to be cleared with null.

Confidence Score: 5/5

This looks safe to merge.

• No blocking issues found in the changed code.
• Removed creation state and components have no remaining references.
• The shared table preserves the API-key creation path.
• The layout checks for a non-null action before rendering it.

Important Files Changed

Filename	Overview
src/routes/(console)/project-[region]-[project]/overview/(components)/table.svelte	Keeps API-key creation unchanged while replacing the Dev-key empty state with a documentation link.
src/routes/(console)/project-[region]-[project]/overview/+layout.svelte	Removes the Create Dev Key command-palette entry.
src/routes/(console)/project-[region]-[project]/overview/context.ts	Allows overview pages to clear the header action by setting it to null.
src/routes/(console)/project-[region]-[project]/overview/dev-keys/+page.svelte	Removes the header action and adds the Dev-key deprecation warning.
src/routes/(console)/project-[region]-[project]/overview/dev-keys/action.svelte	Deletes the Dev-key creation modal and its SDK mutation.
src/routes/(console)/project-[region]-[project]/overview/store.ts	Removes the writable state used only by the deleted creation modal.

_{Reviews (1): Last reviewed commit: "fix(dev-keys): state deprecation dates i..." | Re-trigger Greptile}