Env config (#509)

* Env config

* remove merge conflicts

* feat: Update bridge integration to use new synchronous C API

* Convert ClientConfig classes to records and improve immutability

- Convert ClientConfig, ClientConfigProfile, and ClientConfigTls to record types
- Remove ICloneable interface (records have built-in cloning)
- Use private init setters instead of private set
- Replace Dictionary parameters with IReadOnlyDictionary in public API

Replace JSON serialization with record serialization

- Replace ToJson()/FromJson() methods with ToRecord()/FromRecord() methods
- Create ClientConfigTlsRecord and ClientConfigProfileRecord for TOML structure
- Support conversion between config objects and TOML-ready record structures

Rename namespace from Configuration to EnvConfig

- Change namespace: Temporalio.Client.Configuration → Temporalio.Client.EnvConfig

Rename ClientConfig class to ClientEnvConfig

- Rename ClientConfig → ClientEnvConfig
- Update all references in tests and documentation
- Rename file ClientConfig.cs → ClientEnvConfig.cs
- Renaming EnvProfile -> ConfigProfile

Fix TLS disabled tri-state and profile not found behavior in environment config

- Change Tls.Disabled from bool to bool? to support tri-state behavior (null/true/false)
- Consolidate DataSource class back into ClientEnvConfig.cs
- Add test for tri-state TLS behavior and profile resolution
- Update profile loading logic to match Rust core behavior:
  - profile=null with missing "default" → return empty profile
  - profile="default" with missing "default" → throw exception

* Remove CLAUDE files

* Remove useless disableFile parameter when loading ClientConfig. Parse Vec<u8> from DataSource instead of String

* Tests formatting

* Address most PR feedback

* Use scope.ByteArray in favor of sbyte*

* Deserialize JSON from core using JSON DTO objects

* Clean up - renaming and using shorthand returns

* Use renamed core methods with Env prefix before Config. Use tri-state TLS configuration (disabled, enabled, not configured)

* Rename ConfigProfile -> Profile, with suppression of build warning

* TlsRecord & ProfileRecord removed, in favor of to/fromDictionary methods on the existing Tls and Profile inner classes

* Make to/from dictionary conversion non-null. Minor style improvements

* Remove runtime usage

* Update submodule with merged commit

* Formatting

* Fix interop conflicts

* update test file paths for windows

Author: THardy98

src/Temporalio/Bridge/ByteArray.cs

@@ -10,15 +10,15 @@ namespace Temporalio.Bridge
     /// </summary>
     internal class ByteArray : SafeHandle
     {
-        private readonly Runtime runtime;
+        private readonly Runtime? runtime;
         private readonly unsafe Interop.TemporalCoreByteArray* byteArray;
 
         /// <summary>
         /// Initializes a new instance of the <see cref="ByteArray"/> class.
         /// </summary>
-        /// <param name="runtime">Runtime to use to free the byte array.</param>
+        /// <param name="runtime">Runtime to use to free the byte array, or null to use no runtime.</param>
         /// <param name="byteArray">Byte array pointer.</param>
-        public unsafe ByteArray(Runtime runtime, Interop.TemporalCoreByteArray* byteArray)
+        public unsafe ByteArray(Runtime? runtime, Interop.TemporalCoreByteArray* byteArray)
             : base((IntPtr)byteArray, true)
         {
             this.runtime = runtime;
@@ -75,7 +75,8 @@ public byte[] ToByteArray()
         /// <inheritdoc/>
         protected override unsafe bool ReleaseHandle()
         {
-            runtime.FreeByteArray(byteArray);
+            var runtimePtr = runtime != null ? runtime.Ptr : (Interop.TemporalCoreRuntime*)null;
+            Interop.Methods.temporal_core_byte_array_free(runtimePtr, byteArray);
             return true;
         }
     }