Add API key migration support

[premtsd-code]

Summary

• Adds API key migration support for the Appwrite source/destination (new ApiKey resource, source export via console headers, destination import).
• Adds platform migration support (new Platform resource).
• Pulls in feat-platform-db-access (PR Add platform migration support #154), which switches platform listing/export from console-key HTTP calls to the Project SDK service with buildQueries.

Notes

• Platforms no longer require console headers — they go through projectService->listPlatforms / exportPlatforms($batchSize).
• API keys still require console headers and continue to use the exportWithConsoleHeaders wrapper.
• Stacks on top of the platform-db-access work; if PR Add platform migration support #154 lands first, this diff will shrink accordingly.

Test plan

• composer install && composer test (vendor not present in worktree — please run locally)
• composer lint && composer format
• E2E: migrate a project with API keys + platforms from one Appwrite instance to another, verify both arrive
• Verify report totals for apiKey and platform resource types

[greptile-apps]

Greptile Summary

This PR adds ApiKey and Platform resource support to the Appwrite migration adapters, wiring up export (source), import (destination), reporting, and registration in Transfer and Resource. Platform export is refactored to use the Project SDK service instead of console-key HTTP calls.

• ApiKey resource class (Resources/Integrations/ApiKey.php): new model with cursor-paginated export via Project::listKeys, deduplication by name in the destination, and a freshly-generated secret on import (original secret is intentionally not preserved).
• Source export (Sources/Appwrite.php): exportApiKeys implements the same cursor-based pagination loop as exportPlatforms; reportIntegrations is extended to count keys via listKeys(...)->total.
• Destination import (Destinations/Appwrite.php): createApiKey writes directly to the platform DB, follows the createPlatform pattern for permissions, timestamps, and cache invalidation, and catches DuplicateException for graceful skipping.

Confidence Score: 3/5

Not safe to merge until the known unresolved null-safety bugs are fixed; every real-world key without an expiry date or that has never been accessed will throw a TypeError and fail export entirely.

The export loop in Sources/Appwrite.php passes $key->expire and $key->accessedAt directly from the Appwrite SDK response into the ApiKey constructor, which declares both parameters as non-nullable string. The SDK returns null for both fields on keys with no expiry and keys that have never been used — both are extremely common in production projects. A TypeError thrown inside the pagination loop halts the entire export of API keys. This was identified in a previous review round but the constructor types and the construction site were not updated to apply the same ?? '' guard that fromArray already uses.

src/Migration/Sources/Appwrite.php (exportApiKeys construction site) and src/Migration/Resources/Integrations/ApiKey.php (constructor parameter types for expire and accessedAt)

Important Files Changed

Filename	Overview
src/Migration/Resources/Integrations/ApiKey.php	New ApiKey resource class; constructor declares expire and accessedAt as non-nullable strings but SDK can return null for both fields, causing TypeError at runtime for most real-world keys
src/Migration/Sources/Appwrite.php	Adds exportApiKeys with correct cursor-based pagination; passes nullable SDK fields directly to a non-nullable constructor which throws TypeError for keys with no expiry or that have never been used
src/Migration/Destinations/Appwrite.php	Adds createApiKey writing to the platform DB; uses correct string $this->project for resourceId, generates a fresh secret, and follows the same deduplication and cache-purge pattern as createPlatform
src/Migration/Resource.php	Adds TYPE_API_KEY constant ('api-key') and registers it in ALL_RESOURCES; consistent with existing hyphenated type names
src/Migration/Transfer.php	Registers TYPE_API_KEY in GROUP_INTEGRATIONS_RESOURCES and the resource ordering/whitelist arrays; changes are additive and consistent
tests/Migration/Unit/Adapters/MockDestination.php	Adds TYPE_API_KEY to mock's supported resources list; correct and minimal change
tests/Migration/Unit/Adapters/MockSource.php	Adds TYPE_API_KEY to mock source's supported resources list; correct and minimal change

_{Reviews (8): Last reviewed commit: "Pass through resource permissions to cre..." | Re-trigger Greptile}