Add AquaSynth live session close command

docs/daemonic-swarm-prior-work.md

@@ -13,10 +13,11 @@ architecture. It is a reference ledger for
   `cultnet-stream`, and `cultnet-daemon` as local CultNet command surfaces.
 - `src/AquaSynth.Faust/AquaSynthDaemonService.cs`: the service owns
   `patch.compile`, `instrument.sample`, bounded `instrument.stream`,
-  `instrument.open`, `instrument.control`, and `instrument.block` execution. It
-  writes compile/session/render/stream/live/operator witnesses, keeps native
-  streaming patch instances for live sessions, and emits CultMesh-compatible
-  stream descriptors and packet receipts.
+  `instrument.open`, `instrument.control`, `instrument.block`, and
+  `instrument.close` execution. It writes compile/session/render/stream/live/
+  operator witnesses, keeps native streaming patch instances for live sessions,
+  releases live sessions without deleting compiled patch witnesses, and emits
+  CultMesh-compatible stream descriptors and packet receipts.
 - `src/AquaSynth.Faust/AquaSynthCultNetDaemon.cs`: local CultNet database host
   and command watcher. Typed command documents enter the database; typed
   receipts and provider state come back out.

docs/gamecult-daemonic-swarm.md

@@ -112,11 +112,12 @@ AquaSynth is the current synth example. AquaSynth owns patch parsing, Faust
 emission, native compilation, compiled instrument sessions, sample rendering,
 bounded stream receipts, live streaming sessions, and synth-control state. A
 client can send `instrument.sample`, `instrument.stream`, `instrument.open`,
-`instrument.control`, or `instrument.block` as typed command state through the
-local CultNet database. AquaSynth compiles or opens the instrument, keeps the
-native streaming patch instance, applies controls, writes sample/block artifacts
-and receipts, and publishes the result. The client consumes the capability; it
-does not become the synth.
+`instrument.control`, `instrument.block`, or `instrument.close` as typed command
+state through the local CultNet database. AquaSynth compiles or opens the
+instrument, keeps the native streaming patch instance, applies controls,
+releases live sessions, writes sample/block artifacts and receipts, and
+publishes the result. The client consumes the capability; it does not become
+the synth.
 
 That lets one AquaSynth daemon sit on this machine or another machine in the
 Verse and serve multiple apps. The same engine can support Fensalir, Eve

docs/verse-service-contract.md

@@ -80,6 +80,10 @@ binary lifetime, live instrument handles, control sessions, and sampled outputs.
   return an instrument handle.
 - `instrument.open`: allocate or attach to a compiled instrument session.
 - `instrument.control`: set one or more stable semantic controls.
+- `instrument.block`: process one fixed block through an open live instrument
+  session and return the block receipt/artifact reference.
+- `instrument.close`: release an open live instrument session without deleting
+  the compiled instrument product.
 - `instrument.sample`: sample a live or offline instrument output.
 - `instrument.stream`: compile/open a streaming instrument session, apply
   block-indexed automation controls, publish CultMesh-compatible audio/control
@@ -108,6 +112,11 @@ invent a separate truth for compiled products or control state.
   per-block controls, publishes CultMesh `Audio` and `Tensor` descriptors inside
   the service, writes block `.f32` packet bodies, and commits one typed stream
   receipt.
+- `daemon` and `cultnet-daemon` also accept `instrument.open`,
+  `instrument.control`, `instrument.block`, and `instrument.close` envelopes.
+  These live commands keep and release service-owned native streaming patch
+  instances; closing a live session does not delete the reusable compiled patch
+  witness.
 - `cultnet-host`: starts a local CultNet host/database for AquaSynth command and
   receipt documents, publishes `aquasynth.cultnet_provider.v1`, and watches
   typed command records until the process is stopped.