feat!: rename CartesiaExperimentalControlsSpeedZero and FallbackAzureVoiceVoiceIdZero types

Rename two public enum types and their associated enum cases to use
more consistent naming conventions. These are breaking changes because
existing Swift switch statements and pattern matches on the old case
names will no longer compile.

Key changes:
- Remove `CartesiaExperimentalControlsSpeedZero` and replace with `CartesiaSpeedControlZero`
- Rename `CartesiaSpeedControl.cartesiaExperimentalControlsSpeedZero` case to `.cartesiaSpeedControlZero`
- Remove `FallbackAzureVoiceVoiceIdZero` and replace with `FallbackAzureVoiceIdZero`
- Rename `FallbackAzureVoiceId.fallbackAzureVoiceVoiceIdZero` case to `.fallbackAzureVoiceIdZero`

🌿 Generated with Fern

Author: fern-api[bot]

.fern/metadata.json

@@ -1,12 +1,12 @@
 {
-  "cliVersion": "4.86.2",
+  "cliVersion": "5.51.2",
   "generatorName": "fernapi/fern-swift-sdk",
   "generatorVersion": "0.31.0",
   "generatorConfig": {
     "clientClassName": "VapiClient",
     "moduleName": "Vapi",
     "environmentEnumName": "VapiEnvironment"
   },
-  "originGitCommit": "7dc5137b61f1c65ebff4ce5d2fb11de2d945a1cf",
-  "sdkVersion": "0.1.0"
+  "originGitCommit": "5a015aa01196915bea6110904c69d5804f457ff5",
+  "sdkVersion": "1.0.0"
 }

Sources/Schemas/CartesiaExperimentalControlsSpeedZero.swift

@@ -1,13 +1,13 @@
 import Foundation
 
 public enum CartesiaSpeedControl: Codable, Hashable, Sendable {
-    case cartesiaExperimentalControlsSpeedZero(CartesiaExperimentalControlsSpeedZero)
+    case cartesiaSpeedControlZero(CartesiaSpeedControlZero)
     case double(Double)
 
     public init(from decoder: Decoder) throws {
         let container = try decoder.singleValueContainer()
-        if let value = try? container.decode(CartesiaExperimentalControlsSpeedZero.self) {
-            self = .cartesiaExperimentalControlsSpeedZero(value)
+        if let value = try? container.decode(CartesiaSpeedControlZero.self) {
+            self = .cartesiaSpeedControlZero(value)
         } else if let value = try? container.decode(Double.self) {
             self = .double(value)
         } else {
@@ -21,7 +21,7 @@ public enum CartesiaSpeedControl: Codable, Hashable, Sendable {
     public func encode(to encoder: Encoder) throws -> Void {
         var container = encoder.singleValueContainer()
         switch self {
-        case .cartesiaExperimentalControlsSpeedZero(let value):
+        case .cartesiaSpeedControlZero(let value):
             try container.encode(value)
         case .double(let value):
             try container.encode(value)

Sources/Schemas/CartesiaSpeedControl.swift

@@ -0,0 +1,9 @@
+import Foundation
+
+public enum CartesiaSpeedControlZero: String, Codable, Hashable, CaseIterable, Sendable {
+    case slowest
+    case slow
+    case normal
+    case fast
+    case fastest
+}

Sources/Schemas/CartesiaSpeedControlZero.swift

@@ -2,13 +2,13 @@ import Foundation
 
 /// This is the provider-specific ID that will be used.
 public enum FallbackAzureVoiceId: Codable, Hashable, Sendable {
-    case fallbackAzureVoiceVoiceIdZero(FallbackAzureVoiceVoiceIdZero)
+    case fallbackAzureVoiceIdZero(FallbackAzureVoiceIdZero)
     case string(String)
 
     public init(from decoder: Decoder) throws {
         let container = try decoder.singleValueContainer()
-        if let value = try? container.decode(FallbackAzureVoiceVoiceIdZero.self) {
-            self = .fallbackAzureVoiceVoiceIdZero(value)
+        if let value = try? container.decode(FallbackAzureVoiceIdZero.self) {
+            self = .fallbackAzureVoiceIdZero(value)
         } else if let value = try? container.decode(String.self) {
             self = .string(value)
         } else {
@@ -22,7 +22,7 @@ public enum FallbackAzureVoiceId: Codable, Hashable, Sendable {
     public func encode(to encoder: Encoder) throws -> Void {
         var container = encoder.singleValueContainer()
         switch self {
-        case .fallbackAzureVoiceVoiceIdZero(let value):
+        case .fallbackAzureVoiceIdZero(let value):
             try container.encode(value)
         case .string(let value):
             try container.encode(value)

Sources/Schemas/FallbackAzureVoiceId.swift

@@ -0,0 +1,7 @@
+import Foundation
+
+public enum FallbackAzureVoiceIdZero: String, Codable, Hashable, CaseIterable, Sendable {
+    case andrew
+    case brian
+    case emma
+}

Sources/Schemas/FallbackAzureVoiceIdZero.swift

@@ -1 +1 @@
-public let sdkVersion = "0.1.0"
+public let sdkVersion = "1.0.0"

Sources/Schemas/FallbackAzureVoiceVoiceIdZero.swift

@@ -1,3 +1,8 @@
+## 1.0.0 - 2026-06-24
+### Breaking Changes
+* **`CartesiaExperimentalControlsSpeedZero`** has been removed and replaced by **`CartesiaSpeedControlZero`**. Update any references to this type and rename pattern matches on `CartesiaSpeedControl.cartesiaExperimentalControlsSpeedZero` to `.cartesiaSpeedControlZero`.
+* **`FallbackAzureVoiceVoiceIdZero`** has been removed and replaced by **`FallbackAzureVoiceIdZero`**. Update any references to this type and rename pattern matches on `FallbackAzureVoiceId.fallbackAzureVoiceVoiceIdZero` to `.fallbackAzureVoiceIdZero`.
+
 ## 0.1.0 - 2026-04-22
 ### Added
 * **`Call.subscriptionLimits`** — new optional `SubscriptionLimits?` property on `Call` that exposes org-level subscription and concurrency limit information at the time of the call.