[twarp 07b] Claude Code panel: resurrect view + event model

Cargo.toml

@@ -35,6 +35,7 @@ app-installation-detection = { path = "crates/app-installation-detection" }
 asset_cache = { path = "crates/asset_cache" }
 asset_macro = { path = "crates/asset_macro" }
 channel_versions = { path = "crates/channel_versions", default-features = false }
+claude_code = { path = "crates/claude_code" }
 command = { path = "crates/command" }
 command-signatures-v2 = { path = "crates/command-signatures-v2" }
 computer_use = { path = "crates/computer_use" }

app/Cargo.toml

@@ -76,6 +76,7 @@ cfg-if.workspace = true
 channel_versions.workspace = true
 chrono.workspace = true
 clap.workspace = true
+claude_code.workspace = true
 command = { workspace = true }
 command-corrections.workspace = true
 command-signatures-v2 = { workspace = true, optional = true }

app/src/app_state.rs

@@ -891,6 +891,9 @@ pub enum LeftPanelDisplayedTab {
     GlobalSearch,
     WarpDrive,
     Shortcuts,
+    // twarp 07: persisted identity of the Claude Code tab so it can be the
+    // restored active view across restarts.
+    ClaudeCode,
     ConversationListView,
 }
 
@@ -901,6 +904,7 @@ impl From<ToolPanelView> for LeftPanelDisplayedTab {
             ToolPanelView::GlobalSearch { .. } => LeftPanelDisplayedTab::GlobalSearch,
             ToolPanelView::WarpDrive => LeftPanelDisplayedTab::WarpDrive,
             ToolPanelView::Shortcuts => LeftPanelDisplayedTab::Shortcuts,
+            ToolPanelView::ClaudeCode => LeftPanelDisplayedTab::ClaudeCode,
             ToolPanelView::ConversationListView => LeftPanelDisplayedTab::ConversationListView,
         }
     }