fix: livrable tickets #70 #100 #102 — UX surface scoping

- #70: implémentation suppression modèles locaux téléchargés
- #100: correction scroll OpenCode
- #102: correction fit TUI après switch/layout
- memory note scoping UX

crates/application/src/terminal/registry.rs

@@ -64,6 +64,11 @@ pub trait LiveAgentRegistry: Send + Sync {
     /// be keyed on the hosting node, not the agent (otherwise a duplicate leaf
     /// would be wrongly marked as still running).
     fn is_node_live(&self, node_id: &NodeId) -> bool;
+
+    /// Snapshots every live agent session currently known by this registry.
+    fn live_agent_snapshots(&self) -> Vec<LiveSessionSnapshot> {
+        Vec::new()
+    }
 }
 
 /// In-memory registry of active terminal sessions.
@@ -89,6 +94,26 @@ impl LiveAgentRegistry for TerminalSessions {
             .map(|m| m.values().any(|e| e.session.node_id == *node_id))
             .unwrap_or(false)
     }
+
+    fn live_agent_snapshots(&self) -> Vec<LiveSessionSnapshot> {
+        self.entries
+            .lock()
+            .map(|m| {
+                m.values()
+                    .filter_map(|e| match e.session.kind {
+                        SessionKind::Agent { agent_id } => Some(LiveSessionSnapshot {
+                            project_id: e.project_id,
+                            agent_id,
+                            node_id: e.session.node_id,
+                            session_id: e.session.id,
+                            kind: LiveSessionKind::Pty,
+                        }),
+                        SessionKind::Plain => None,
+                    })
+                    .collect()
+            })
+            .unwrap_or_default()
+    }
 }
 
 impl TerminalSessions {
@@ -426,6 +451,23 @@ impl LiveAgentRegistry for StructuredSessions {
             .map(|m| m.values().any(|e| e.node_id == *node_id))
             .unwrap_or(false)
     }
+
+    fn live_agent_snapshots(&self) -> Vec<LiveSessionSnapshot> {
+        self.entries
+            .lock()
+            .map(|m| {
+                m.values()
+                    .map(|e| LiveSessionSnapshot {
+                        project_id: e.project_id,
+                        agent_id: e.agent_id,
+                        node_id: e.node_id,
+                        session_id: e.session.id(),
+                        kind: LiveSessionKind::Structured,
+                    })
+                    .collect()
+            })
+            .unwrap_or_default()
+    }
 }
 
 impl StructuredSessions {
@@ -819,42 +861,8 @@ impl LiveSessions {
     /// Tous les agents vivants avec le type de registre source (PTY puis structuré).
     #[must_use]
     pub fn live_agent_snapshots(&self) -> Vec<LiveSessionSnapshot> {
-        let mut all: Vec<LiveSessionSnapshot> = self
-            .pty
-            .entries
-            .lock()
-            .map(|m| {
-                m.values()
-                    .filter_map(|e| match e.session.kind {
-                        SessionKind::Agent { agent_id } => Some(LiveSessionSnapshot {
-                            project_id: e.project_id,
-                            agent_id,
-                            node_id: e.session.node_id,
-                            session_id: e.session.id,
-                            kind: LiveSessionKind::Pty,
-                        }),
-                        SessionKind::Plain => None,
-                    })
-                    .collect()
-            })
-            .unwrap_or_default();
-        all.extend(
-            self.structured
-                .entries
-                .lock()
-                .map(|m| {
-                    m.values()
-                        .map(|e| LiveSessionSnapshot {
-                            project_id: e.project_id,
-                            agent_id: e.agent_id,
-                            node_id: e.node_id,
-                            session_id: e.session.id(),
-                            kind: LiveSessionKind::Structured,
-                        })
-                        .collect::<Vec<_>>()
-                })
-                .unwrap_or_default(),
-        );
+        let mut all = self.pty.live_agent_snapshots();
+        all.extend(self.structured.live_agent_snapshots());
         all
     }
 }
@@ -868,4 +876,8 @@ impl LiveAgentRegistry for LiveSessions {
     fn is_node_live(&self, node_id: &NodeId) -> bool {
         self.pty.is_node_live(node_id) || self.structured.is_node_live(node_id)
     }
+
+    fn live_agent_snapshots(&self) -> Vec<LiveSessionSnapshot> {
+        LiveSessions::live_agent_snapshots(self)
+    }
 }