v0.5.1

Upgrading from v0.5.0 can use a rolling update. Stop one node, wait for its replacement to report healthy, then continue to the next node.

Highlights:

• Dynamic Workers can enforce CPU time and subrequest limits from WorkerCode.limits or a getEntrypoint() call.
• Dynamic Workers can send Tail Workers an invocation report with the request, response, console logs, exception, and outcome.
• The new celld r2 CLI tool can put, get, list, inspect, and delete objects behind an r2_buckets binding without a running node. It preserves the binding's object metadata.
• celld deploy accepts Wrangler define values and rules for Text, Data, and CompiledWasm modules when it bundles a Worker.
• KV accepts a ReadableStream value in put(). It checks the value-size limit while reading the stream.
• The node caps its LTX writer and read-lock SQLite page caches, and returns freed C allocator pages before it measures memory pressure.
• Compaction can read retained LTX bundles after their segments leave the in-memory index, so a slow cell can continue draining its history.
• The /evict/<cell> operator route reports a refusal, cancellation, or failure instead of returning success before the eviction completes.
• /state reports isolate counts and V8 and allocator memory counters.
• Node.js compatibility improves for mutable built-in modules and the process fields that dependencies read during module loading.

Issues fixed:

• #204: KeyObject.toCryptoKey() honors the requested algorithm, key usages, and extractability, so valid RSA keys can sign with jose.
• #209: R2 writes work with Azure Blob Storage metadata-name rules.