chore: vendor swabble and add speech usage strings

Swabble/Sources/SwabbleCore/Config/Config.swift

@@ -0,0 +1,77 @@
+import Foundation
+
+public struct SwabbleConfig: Codable, Sendable {
+    public struct Audio: Codable, Sendable {
+        public var deviceName: String = ""
+        public var deviceIndex: Int = -1
+        public var sampleRate: Double = 16000
+        public var channels: Int = 1
+    }
+
+    public struct Wake: Codable, Sendable {
+        public var enabled: Bool = true
+        public var word: String = "clawd"
+        public var aliases: [String] = ["claude"]
+    }
+
+    public struct Hook: Codable, Sendable {
+        public var command: String = ""
+        public var args: [String] = []
+        public var prefix: String = "Voice swabble from ${hostname}: "
+        public var cooldownSeconds: Double = 1
+        public var minCharacters: Int = 24
+        public var timeoutSeconds: Double = 5
+        public var env: [String: String] = [:]
+    }
+
+    public struct Logging: Codable, Sendable {
+        public var level: String = "info"
+        public var format: String = "text" // text|json placeholder
+    }
+
+    public struct Transcripts: Codable, Sendable {
+        public var enabled: Bool = true
+        public var maxEntries: Int = 50
+    }
+
+    public struct Speech: Codable, Sendable {
+        public var localeIdentifier: String = Locale.current.identifier
+        public var etiquetteReplacements: Bool = false
+    }
+
+    public var audio = Audio()
+    public var wake = Wake()
+    public var hook = Hook()
+    public var logging = Logging()
+    public var transcripts = Transcripts()
+    public var speech = Speech()
+
+    public static let defaultPath = FileManager.default
+        .homeDirectoryForCurrentUser
+        .appendingPathComponent(".config/swabble/config.json")
+
+    public init() {}
+}
+
+public enum ConfigError: Error {
+    case missingConfig
+}
+
+public enum ConfigLoader {
+    public static func load(at path: URL?) throws -> SwabbleConfig {
+        let url = path ?? SwabbleConfig.defaultPath
+        if !FileManager.default.fileExists(atPath: url.path) {
+            throw ConfigError.missingConfig
+        }
+        let data = try Data(contentsOf: url)
+        return try JSONDecoder().decode(SwabbleConfig.self, from: data)
+    }
+
+    public static func save(_ config: SwabbleConfig, at path: URL?) throws {
+        let url = path ?? SwabbleConfig.defaultPath
+        let dir = url.deletingLastPathComponent()
+        try FileManager.default.createDirectory(at: dir, withIntermediateDirectories: true)
+        let data = try JSONEncoder().encode(config)
+        try data.write(to: url)
+    }
+}