feat: add plugin v1 system

Add manifest-driven plugin actions, event hooks, pane entrypoints, link handlers, and host APIs.

Support plugin link, GitHub install, build commands, installed plugin registry, pane movement, runtime context, and plugin docs.

1 files changed, 34 insertions, 3 deletions

diff --git a/src/app/mod.rs b/src/app/mod.rs
index 5447a2de..356ecbab 100644
--- a/src/app/mod.rs
+++ b/src/app/mod.rs
@@ -56,6 +56,13 @@ use crate::events::AppEvent;
 
 pub use state::{AppState, Mode, ToastKind, ViewState};
 
+pub(crate) fn load_plugin_manifest(
+    path: &str,
+    enabled: bool,
+) -> Result<crate::api::schema::InstalledPluginInfo, (&'static str, String)> {
+    api::plugins::load_plugin_manifest(path, enabled)
+}
+
 /// Full application: AppState + runtime concerns (event channels, async I/O).
 #[derive(Debug, Clone)]
 pub(crate) struct OverlayPaneState {
@@ -132,7 +139,7 @@ pub(crate) const APP_EVENT_DRAIN_LIMIT: usize = 64;
 pub(crate) enum LoopEvent {
     Timer,
     Internal(AppEvent),
-    Api(crate::api::ApiRequestMessage),
+    Api(Box<crate::api::ApiRequestMessage>),
     RawInput(crate::raw_input::RawInputEvent),
     InputClosed,
     RenderRequested,
@@ -183,6 +190,20 @@ fn auto_updates_enabled(no_session: bool) -> bool {
     !no_session && !cfg!(debug_assertions)
 }
 
+fn load_plugin_registry(no_session: bool) -> crate::app::state::InstalledPluginRegistry {
+    if no_session {
+        return std::collections::HashMap::new();
+    }
+    let entries = crate::persist::plugin_registry::load();
+    let entries = crate::persist::plugin_registry::reload_manifests(entries, |path, enabled| {
+        crate::app::api::plugins::load_plugin_manifest(path, enabled).map_err(|(_, msg)| msg)
+    });
+    entries
+        .into_iter()
+        .map(|plugin| (plugin.plugin_id.clone(), plugin))
+        .collect()
+}
+
 fn agent_panel_scope_from_config(
     scope: crate::config::AgentPanelScopeConfig,
 ) -> state::AgentPanelScope {
@@ -542,6 +563,11 @@ impl App {
             agent_manifest_summaries,
             agent_manifest_update_status: crate::detect::manifest_update::load_status(),
             integration_install_messages: Vec::new(),
+            installed_plugins: load_plugin_registry(no_session),
+            plugin_panes: std::collections::HashMap::new(),
+            plugin_command_logs: Vec::new(),
+            next_plugin_command_log_id: 1,
+            plugin_commands_in_flight: 0,
             global_menu: state::MenuListState::new(0),
             host_terminal_theme: crate::terminal_theme::TerminalTheme::default(),
             session_dirty: false,
@@ -895,7 +921,7 @@ impl App {
                 let input_rx = self.input_rx.as_mut();
                 tokio::select! {
                     maybe_api = self.api_rx.recv() => match maybe_api {
-                        Some(msg) => LoopEvent::Api(msg),
+                        Some(msg) => LoopEvent::Api(Box::new(msg)),
                         None => LoopEvent::Timer,
                     },
                     maybe_ev = self.event_rx.recv() => match maybe_ev {
@@ -918,7 +944,7 @@ impl App {
                     needs_render = true;
                 }
                 LoopEvent::Api(msg) => {
-                    if self.handle_api_request_message(msg) {
+                    if self.handle_api_request_message(*msg) {
                         needs_render = true;
                     }
                 }
@@ -3202,6 +3228,7 @@ mod tests {
                 ratio: None,
                 cwd: None,
                 focus: false,
+                env: Default::default(),
             }),
         });
         let response: serde_json::Value = serde_json::from_str(&response).unwrap();
@@ -3281,6 +3308,7 @@ mod tests {
                 ratio: None,
                 cwd: None,
                 focus: true,
+                env: Default::default(),
             }),
         });
         let response: serde_json::Value = serde_json::from_str(&response).unwrap();
@@ -3326,6 +3354,7 @@ mod tests {
                 ratio: Some(0.333),
                 cwd: None,
                 focus: false,
+                env: Default::default(),
             }),
         });
         let response: serde_json::Value = serde_json::from_str(&response).unwrap();
@@ -3371,6 +3400,7 @@ mod tests {
                 ratio: None,
                 cwd: None,
                 focus: false,
+                env: Default::default(),
             }),
         });
         let response: serde_json::Value = serde_json::from_str(&response).unwrap();
@@ -3412,6 +3442,7 @@ mod tests {
                 split: Some(crate::api::schema::SplitDirection::Right),
                 focus: true,
                 argv: vec![exiting_test_command().into()],
+                env: Default::default(),
             }),
         });
         let response: serde_json::Value = serde_json::from_str(&response).unwrap();