docs: mark MIGRATE as available for C# and PHP

[Aryex]

Summary

Mark the MIGRATE command as available for the C# and PHP clients in the command progress tracker.

⚠️ Attention: This PR was generated automatically. Verify that all relevant pages have been updated.

Source Commits

• 8763372 — Add MIGRATE command support (#447)
• c2cfab8 — Implement migrate command (Proposal: Managing deployments with draft contents #276)

Changes

• Updated available-commands.json: changed C# status for MIGRATE from not_available to available
• Updated available-commands.json: changed PHP status for MIGRATE from not_available to available
• Removed the csharp-href and php-href tracking links since the command is now implemented in both clients

Context

C# #447 implements MigrateAsync(ValkeyKey key, MigrateOptions options) on BaseClient (standalone + cluster) and MigrateAsync(IEnumerable<ValkeyKey> keys, MigrateOptions options) on GlideClient (standalone-only). MigrateOptions provides fluent builders for COPY, REPLACE, and AUTH/AUTH2 flags, implements IDisposable for credential-safe password handling, and builds the full wire-format argument array.

Php #276 implements migrate(string $host, int $port, string|array $key, int $dstdb, int $timeout, bool $copy = false, bool $replace = false, mixed $credentials = null) for both standalone (ValkeyGlide) and cluster (ValkeyGlideCluster) PHP clients. Supports single-key migration (both clients), multi-key migration (standalone only), COPY/REPLACE flags, and AUTH/AUTH2 credentials. PHPRedis-compatible signature.

With this change, MIGRATE is now available across all GLIDE language clients (Python, Node.js, Java, Go, C#, PHP).

cc @currantw @prateek-kumar-improving

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This PR was generated by the automated documentation pipeline.

[currantw]

Looks good ✅

[Aryex]

📝 Updated PR description with c2cfab8 — Implement migrate command (#276)

Also marked PHP MIGRATE as available in available-commands.json. With this change, MIGRATE is now available across all GLIDE language clients.