Add permission modes and container introspection backend

Permission modes: replaces the binary full_permissions flag with a
PermissionMode enum (Plan/Default/AcceptEdits/Bypass). Flag mapping is
defined once in PermissionMode::cli_args() and used by the terminal, the
web terminal, and the scheduler:
  Plan        -> --permission-mode plan
  Default     -> (no flag)
  AcceptEdits -> --permission-mode acceptEdits
  Bypass      -> --dangerously-skip-permissions
Choices verified against `claude --permission-mode` on 2.1.226.

full_permissions is retained and effective_permission_mode() falls back
to it, so existing projects.json needs no migration.

Bug fix: triple-c-task-runner ran `claude -p ... --dangerously-skip-
permissions` unconditionally, ignoring the project's setting entirely.
It now reads TRIPLE_C_PERMISSION_MODE, which is injected into the
container, added to the reserved env blocklist, propagated through the
entrypoint's cron env filter, and tracked by a new
triple-c.permission-mode label so a change forces recreation.

Introspection: new commands/inspect_commands.rs exposes read-only views
into the container over docker exec — Claude sessions (parsed from
~/.claude/projects/<cwd>/<uuid>.jsonl), installed capabilities (skills,
agents, commands, hooks, plugins, natively-configured MCP servers), and
the triple-c-scheduler task list, logs and notifications.

Task/session ids are validated against a strict allowlist and every
parameterized call runs as a bare argv vector via bollard, so no shell
is involved. Stopped containers return empty results rather than errors.

No UI yet; that lands with the Project Home view.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

app/src-tauri/src/models/project.rs

@@ -30,6 +30,50 @@ fn default_full_permissions() -> bool {
     true
 }
 
+/// How much autonomy Claude Code is granted inside the container.
+///
+/// Maps onto Claude Code CLI flags — see [`PermissionMode::cli_args`], which is
+/// the single definition of that mapping and must be used by every call site.
+#[derive(Debug, Clone, Copy, Serialize, Deserialize, PartialEq, Eq, Default)]
+#[serde(rename_all = "camelCase")]
+pub enum PermissionMode {
+    /// Read-only planning mode.
+    Plan,
+    /// Claude Code's own default behavior (prompts for permission).
+    #[default]
+    Default,
+    /// Auto-accept file edits, prompt for everything else.
+    AcceptEdits,
+    /// Skip all permission prompts.
+    Bypass,
+}
+
+impl PermissionMode {
+    /// The CLI flags this mode adds to a `claude` invocation.
+    /// Defined once here so every call site stays in sync.
+    pub fn cli_args(&self) -> Vec<String> {
+        match self {
+            PermissionMode::Plan => vec!["--permission-mode".to_string(), "plan".to_string()],
+            PermissionMode::Default => Vec::new(),
+            PermissionMode::AcceptEdits => {
+                vec!["--permission-mode".to_string(), "acceptEdits".to_string()]
+            }
+            PermissionMode::Bypass => vec!["--dangerously-skip-permissions".to_string()],
+        }
+    }
+
+    /// The wire value used for the `TRIPLE_C_PERMISSION_MODE` container env var.
+    /// Matches the serde `camelCase` representation.
+    pub fn as_env_value(&self) -> &'static str {
+        match self {
+            PermissionMode::Plan => "plan",
+            PermissionMode::Default => "default",
+            PermissionMode::AcceptEdits => "acceptEdits",
+            PermissionMode::Bypass => "bypass",
+        }
+    }
+}
+
 /// Settings for Claude Code CLI behavior inside the container.
 /// These map to Claude Code env vars and ~/.claude/settings.json entries.
 #[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Default)]
@@ -78,8 +122,16 @@ pub struct Project {
     pub sandbox_mode_enabled: bool,
     #[serde(default)]
     pub mission_control_enabled: bool,
+    /// Legacy binary permission flag. Superseded by `permission_mode`, but kept
+    /// because it is the value already stored in users' `projects.json`; it is
+    /// the fallback in `effective_permission_mode()` so old projects keep
+    /// behaving identically without a data migration.
     #[serde(default = "default_full_permissions")]
     pub full_permissions: bool,
+    /// Per-project permission mode. `None` means "not set yet" → fall back to
+    /// the legacy `full_permissions` flag.
+    #[serde(default)]
+    pub permission_mode: Option<PermissionMode>,
     pub ssh_key_path: Option<String>,
     #[serde(skip_serializing, default)]
     pub git_token: Option<String>,
@@ -211,6 +263,7 @@ impl Project {
             sandbox_mode_enabled: false,
             mission_control_enabled: false,
             full_permissions: false,
+            permission_mode: None,
             ssh_key_path: None,
             git_token: None,
             git_user_name: None,
@@ -225,6 +278,17 @@ impl Project {
         }
     }
 
+    /// The permission mode to actually use for this project.
+    /// Falls back to the legacy `full_permissions` boolean when the newer
+    /// `permission_mode` field has never been set.
+    pub fn effective_permission_mode(&self) -> PermissionMode {
+        self.permission_mode.unwrap_or(if self.full_permissions {
+            PermissionMode::Bypass
+        } else {
+            PermissionMode::Default
+        })
+    }
+
     pub fn container_name(&self) -> String {
         format!("triple-c-{}", self.id)
     }