Ungate procedures from the unstable feature

Procedures (and the outgoing HTTP client used from procedures) are no
longer gated behind the `unstable` feature / `SPACETIMEDB_UNSTABLE_FEATURES`
across the module libraries. HTTP handlers/webhooks, views, RLS, and
immediate-scheduling remain gated.

- bindings-sys: ungate the `procedure` host-call module + raw ABI
  (start/commit/abort_mut_tx, procedure_http_request) and `call_no_ret`.
- bindings (Rust): ungate the `procedure` macro, ProcedureContext,
  TxContext/with_tx/try_with_tx, db_read_only/get_read_only, procedure
  traits, register_procedure, __call_procedure__, procedure RNG, and the
  outgoing HttpClient. Add fine-grained gating inside http.rs so the
  HttpClient is exposed while HandlerContext/Router/handler macros stay
  gated.
- bindings-csharp: drop [Experimental("STDB_UNSTABLE")] from
  ProcedureContext WithTx/TryWithTx (runtime + generated) and the
  generated ProcedureTxContext; regenerate FFI snapshots.
- bindings-cpp: ungate the procedure ABI, tx_execution, the outgoing
  HTTP client (http.h/http_convert.h), and procedure_context.h; handlers
  keep requiring SPACETIMEDB_UNSTABLE_FEATURES.
- docs: remove the procedures beta notices (HTTP handlers stay beta);
  regenerate static/llms.md.
- sdk-test-procedure: no longer needs features = ["unstable"].

Author: cloutiertyler

crates/bindings-cpp/include/spacetimedb/abi/FFI.h

@@ -75,11 +75,9 @@ using ::identity;
 using ::get_jwt;
 
 // ===== Procedure Transactions =====
-#ifdef SPACETIMEDB_UNSTABLE_FEATURES
 using ::procedure_start_mut_tx;
 using ::procedure_commit_mut_tx;
 using ::procedure_abort_mut_tx;
-#endif
 
 // ===== Module Export Helpers =====
 

crates/bindings-cpp/include/spacetimedb/abi/abi.h

@@ -174,7 +174,6 @@ STDB_IMPORT_10_2(get_jwt)
 Status get_jwt(const uint8_t* connection_id_ptr, BytesSource* out);
 
 // ===== Procedure Transactions (spacetime_10.3) =====
-#ifdef SPACETIMEDB_UNSTABLE_FEATURES
 STDB_IMPORT_10_3(procedure_start_mut_tx)
 Status procedure_start_mut_tx(int64_t* out);
 
@@ -190,7 +189,6 @@ Status procedure_http_request(
     const uint8_t* request_ptr, size_t request_len,
     const uint8_t* body_ptr, size_t body_len,
     BytesSource out[2]);
-#endif
 
 } // extern "C"
 

crates/bindings-cpp/include/spacetimedb/http.h

@@ -3,10 +3,6 @@
 
 #pragma once
 
-#ifndef SPACETIMEDB_UNSTABLE_FEATURES
-#error "spacetimedb/http.h requires SPACETIMEDB_UNSTABLE_FEATURES to be enabled"
-#endif
-
 #include <string>
 #include <vector>
 #include <optional>
@@ -302,12 +298,8 @@ class HttpClient {
      * @endcode
      */
     Outcome<HttpResponse> send(const HttpRequest& request) {
-        #ifndef SPACETIMEDB_UNSTABLE_FEATURES
-        return Err<HttpResponse>("HTTP requests require SPACETIMEDB_UNSTABLE_FEATURES to be enabled");
-        #else
         // Implemented in http_client_impl.h to avoid circular dependencies
         return SendImpl(request);
-        #endif
     }
 
 private:
@@ -317,7 +309,7 @@ class HttpClient {
 } // namespace SpacetimeDB
 
 // Include implementation dependencies after class definition to avoid circular dependencies
-#if defined(SPACETIMEDB_UNSTABLE_FEATURES) && !defined(SPACETIMEDB_HTTP_CONVERT_H)
+#ifndef SPACETIMEDB_HTTP_CONVERT_H
 #include "spacetimedb/logger.h"
 #include "spacetimedb/http_convert.h"
 #include "spacetimedb/http_client_impl.h"

crates/bindings-cpp/include/spacetimedb/http_convert.h

@@ -281,9 +281,7 @@ inline std::pair<wire::HttpResponse, std::vector<uint8_t>> to_wire_split(const H
 } // namespace convert
 } // namespace SpacetimeDB
 
-#ifdef SPACETIMEDB_UNSTABLE_FEATURES
 #include "spacetimedb/logger.h"
 #include "spacetimedb/http_client_impl.h"
-#endif
 
 #endif // SPACETIMEDB_HTTP_CONVERT_H

crates/bindings-cpp/include/spacetimedb/internal/tx_execution.h

@@ -9,8 +9,6 @@
 
 namespace SpacetimeDB::Internal {
 
-#ifdef SPACETIMEDB_UNSTABLE_FEATURES
-
 template<typename T>
 struct is_outcome : std::false_type {};
 
@@ -143,8 +141,6 @@ auto try_with_tx(MakeReducerContext&& make_reducer_ctx, Func& body) -> decltype(
     return result;
 }
 
-#endif
-
 } // namespace SpacetimeDB::Internal
 
 #endif // SPACETIMEDB_INTERNAL_TX_EXECUTION_H

crates/bindings-cpp/include/spacetimedb/procedure_context.h

@@ -8,9 +8,7 @@
 #include <spacetimedb/abi/FFI.h> // For transaction syscalls
 #include <spacetimedb/internal/tx_execution.h>
 #include <spacetimedb/random.h> // For StdbRng
-#ifdef SPACETIMEDB_UNSTABLE_FEATURES
 #include <spacetimedb/http.h> // For HttpClient
-#endif
 #include <cstdint>
 #include <functional>
 #include <stdexcept>
@@ -66,12 +64,10 @@ struct ProcedureContext {
     // Used to track which client connection initiated this procedure
     ConnectionId connection_id;
 
-#ifdef SPACETIMEDB_UNSTABLE_FEATURES
     // HTTP client for making external requests
     // IMPORTANT: HTTP calls are NOT allowed inside transactions!
     // Always call HTTP before with_tx() or try_with_tx()
     HttpClient http;
-#endif
 
 private:
     // Lazily initialized RNG for UUID generation
@@ -173,10 +169,9 @@ struct ProcedureContext {
         return Uuid::from_counter_v7(counter_uuid_, timestamp, random_bytes);
     }
 
-#ifdef SPACETIMEDB_UNSTABLE_FEATURES
     /**
      * @brief Execute a callback within a database transaction
-     * 
+     *
      * Starts a mutable transaction, executes the callback, and commits on success.
      * If the callback panics (via LOG_PANIC), the transaction is automatically rolled back.
      * 
@@ -238,7 +233,6 @@ struct ProcedureContext {
         };
         return Internal::try_with_tx(make_reducer_ctx, body);
     }
-#endif
 };
 
 } // namespace SpacetimeDB

crates/bindings-csharp/Codegen.Tests/fixtures/diag/snapshots/Module#FFI.verified.cs

@@ -151,14 +151,11 @@ Internal.TxContext inner
 
         private ProcedureTxContext? _cached;
 
-        [Experimental("STDB_UNSTABLE")]
         public Local Db => _db;
 
-        [Experimental("STDB_UNSTABLE")]
         public TResult WithTx<TResult>(Func<ProcedureTxContext, TResult> body) =>
             base.WithTx(tx => body((ProcedureTxContext)tx));
 
-        [Experimental("STDB_UNSTABLE")]
         public TxOutcome<TResult> TryWithTx<TResult, TError>(
             Func<ProcedureTxContext, Result<TResult, TError>> body
         )
@@ -252,7 +249,6 @@ public Uuid NewUuidV7()
         }
     }
 
-    [Experimental("STDB_UNSTABLE")]
     public sealed class ProcedureTxContext : global::SpacetimeDB.ProcedureTxContextBase
     {
         internal ProcedureTxContext(Internal.TxContext inner)

crates/bindings-csharp/Codegen.Tests/fixtures/explicitnames/snapshots/Module#FFI.verified.cs

@@ -593,14 +593,11 @@ Internal.TxContext inner
 
         private ProcedureTxContext? _cached;
 
-        [Experimental("STDB_UNSTABLE")]
         public Local Db => _db;
 
-        [Experimental("STDB_UNSTABLE")]
         public TResult WithTx<TResult>(Func<ProcedureTxContext, TResult> body) =>
             base.WithTx(tx => body((ProcedureTxContext)tx));
 
-        [Experimental("STDB_UNSTABLE")]
         public TxOutcome<TResult> TryWithTx<TResult, TError>(
             Func<ProcedureTxContext, Result<TResult, TError>> body
         )
@@ -694,7 +691,6 @@ public Uuid NewUuidV7()
         }
     }
 
-    [Experimental("STDB_UNSTABLE")]
     public sealed class ProcedureTxContext : global::SpacetimeDB.ProcedureTxContextBase
     {
         internal ProcedureTxContext(Internal.TxContext inner)

crates/bindings-csharp/Codegen.Tests/fixtures/server/snapshots/Module#FFI.verified.cs

@@ -2545,14 +2545,11 @@ internal ProcedureContext(Identity identity, ConnectionId? connectionId, Random
 
                             private ProcedureTxContext? _cached;
 
-                            [Experimental("STDB_UNSTABLE")]
                             public Local Db => _db;
-                            
-                            [Experimental("STDB_UNSTABLE")]
+
                             public TResult WithTx<TResult>(Func<ProcedureTxContext, TResult> body) =>
                                 base.WithTx(tx => body((ProcedureTxContext)tx));
-                            
-                            [Experimental("STDB_UNSTABLE")]
+
                             public TxOutcome<TResult> TryWithTx<TResult, TError>(
                                 Func<ProcedureTxContext, Result<TResult, TError>> body)
                                 where TError : Exception =>
@@ -2643,7 +2640,6 @@ public Uuid NewUuidV7()
                             }
                         }
 
-                        [Experimental("STDB_UNSTABLE")]
                         public sealed class ProcedureTxContext : global::SpacetimeDB.ProcedureTxContextBase {
                             internal ProcedureTxContext(Internal.TxContext inner) : base(inner) {}