feat: AI based permission checks

src/config.rs

@@ -14,6 +14,7 @@ use crate::settings::{GenerationPreferences, RuntimePreferences};
 #[serde(default, deny_unknown_fields)]
 pub struct Config {
     pub model: ModelChoice,
+    pub default_permission_mode: PermissionMode,
     pub idle_timeout_minutes: i32,
     pub a2ui_enabled: bool,
     pub dev_brain: DevBrainConfig,
@@ -28,6 +29,7 @@ impl Default for Config {
     fn default() -> Self {
         Self {
             model: ModelChoice::default(),
+            default_permission_mode: PermissionMode::default(),
             idle_timeout_minutes: 10,
             a2ui_enabled: true,
             dev_brain: DevBrainConfig::default(),
@@ -40,6 +42,42 @@ impl Default for Config {
     }
 }
 
+pub const PERMISSION_MODES: [PermissionMode; 2] = [PermissionMode::Heuristic, PermissionMode::Ai];
+
+#[derive(Clone, Copy, Debug, Default, Deserialize, Eq, PartialEq, Serialize)]
+#[serde(rename_all = "kebab-case")]
+pub enum PermissionMode {
+    #[default]
+    Heuristic,
+    Ai,
+}
+
+impl PermissionMode {
+    pub(crate) fn as_id(self) -> &'static str {
+        match self {
+            Self::Heuristic => "heuristic",
+            Self::Ai => "ai",
+        }
+    }
+
+    pub(crate) fn from_id(id: &str) -> Option<Self> {
+        match id {
+            "heuristic" => Some(Self::Heuristic),
+            "ai" => Some(Self::Ai),
+            _ => None,
+        }
+    }
+}
+
+impl fmt::Display for PermissionMode {
+    fn fmt(&self, formatter: &mut fmt::Formatter<'_>) -> fmt::Result {
+        formatter.write_str(match self {
+            Self::Heuristic => "Heuristic",
+            Self::Ai => "AI based",
+        })
+    }
+}
+
 pub const GIT_DIFF_ALGORITHMS: [GitDiffAlgorithm; 3] = [
     GitDiffAlgorithm::Default,
     GitDiffAlgorithm::Patience,
@@ -288,6 +326,7 @@ mod tests {
         let path = directory.join("config.yaml");
         let config = Config {
             model: ModelChoice::Glm52,
+            default_permission_mode: PermissionMode::Ai,
             a2ui_enabled: false,
             generation: GenerationPreferences {
                 context_tokens: 65_536,
@@ -316,7 +355,7 @@ mod tests {
         let text = fs::read_to_string(&path).unwrap();
         assert_eq!(
             text,
-            "model: glm-5.2\na2ui_enabled: false\n\
+            "model: glm-5.2\ndefault_permission_mode: ai\na2ui_enabled: false\n\
              generation:\n  context_tokens: 65536\n  reasoning_mode: none\n\
              runtime:\n  ssd:\n    enabled: true\n    cache: 64GB\n\
              git:\n  diff_layout: split\n  diff_algorithm: patience\n  context_lines: 5\n  whitespace: ignore-end-of-line\n"