feat: mac node exec policy + remote skills hot reload

apps/macos/Sources/Clawdbot/SystemRunPolicy.swift

@@ -0,0 +1,89 @@
+import Foundation
+
+enum SystemRunPolicy: String, CaseIterable, Identifiable {
+    case never
+    case ask
+    case always
+
+    var id: String { self.rawValue }
+
+    var title: String {
+        switch self {
+        case .never:
+            return "Never"
+        case .ask:
+            return "Always Ask"
+        case .always:
+            return "Always Allow"
+        }
+    }
+
+    static func load(from defaults: UserDefaults = .standard) -> SystemRunPolicy {
+        if let policy = MacNodeConfigFile.systemRunPolicy() {
+            return policy
+        }
+        if let raw = defaults.string(forKey: systemRunPolicyKey),
+           let policy = SystemRunPolicy(rawValue: raw)
+        {
+            MacNodeConfigFile.setSystemRunPolicy(policy)
+            return policy
+        }
+        if let legacy = defaults.object(forKey: systemRunEnabledKey) as? Bool {
+            let policy: SystemRunPolicy = legacy ? .ask : .never
+            MacNodeConfigFile.setSystemRunPolicy(policy)
+            return policy
+        }
+        let fallback: SystemRunPolicy = .ask
+        MacNodeConfigFile.setSystemRunPolicy(fallback)
+        return fallback
+    }
+}
+
+enum SystemRunAllowlist {
+    static func key(for argv: [String]) -> String {
+        let trimmed = argv.map { $0.trimmingCharacters(in: .whitespacesAndNewlines) }
+        guard !trimmed.isEmpty else { return "" }
+        if let data = try? JSONEncoder().encode(trimmed),
+           let json = String(data: data, encoding: .utf8)
+        {
+            return json
+        }
+        return trimmed.joined(separator: " ")
+    }
+
+    static func displayString(for argv: [String]) -> String {
+        argv.map { arg in
+            let trimmed = arg.trimmingCharacters(in: .whitespacesAndNewlines)
+            guard !trimmed.isEmpty else { return "\"\"" }
+            let needsQuotes = trimmed.contains { $0.isWhitespace || $0 == "\"" }
+            if !needsQuotes { return trimmed }
+            let escaped = trimmed.replacingOccurrences(of: "\"", with: "\\\"")
+            return "\"\(escaped)\""
+        }.joined(separator: " ")
+    }
+
+    static func load(from defaults: UserDefaults = .standard) -> Set<String> {
+        if let allowlist = MacNodeConfigFile.systemRunAllowlist() {
+            return Set(allowlist)
+        }
+        if let legacy = defaults.stringArray(forKey: systemRunAllowlistKey), !legacy.isEmpty {
+            MacNodeConfigFile.setSystemRunAllowlist(legacy)
+            return Set(legacy)
+        }
+        return []
+    }
+
+    static func contains(_ argv: [String], defaults: UserDefaults = .standard) -> Bool {
+        let key = key(for: argv)
+        return load(from: defaults).contains(key)
+    }
+
+    static func add(_ argv: [String], defaults: UserDefaults = .standard) {
+        let key = key(for: argv)
+        guard !key.isEmpty else { return }
+        var allowlist = load(from: defaults)
+        if allowlist.insert(key).inserted {
+            MacNodeConfigFile.setSystemRunAllowlist(Array(allowlist).sorted())
+        }
+    }
+}