v1.4.0: Auto-compact streaming, Bedrock summarization support, subagent orchestration, and Galaxy rebrand continuation

Major features:
- Auto-compact: triggers conversation summarization when context window >= 85%,
  compacts Bedrock message history to a summary pair, and tracks live context tokens
- Bedrock summarization: plumbs `is_summarization` flag through translator/client/response
  pipeline, handles SummarizeConversation input type, and marks `summarized` in metadata
- Session restore: rebuilds bedrock_message_history from persisted task messages via
  newly-public `convert_proto_message`, preventing empty history on reconnect
- Subagent orchestration: adds SubagentQuestion/Answer/CompletionSummary event types,
  parent-child question routing with depth limits, retry counting, and drain methods
- Summarization UI: inline SummarizationView in AI blocks with progress/finished states

Refactors:
- Rename WarpTheme → GalaxyTheme across ~100 files (rebrand continuation)
- Rename warp_home_config_dir → galaxy_home_config_dir and related path functions
- Predefined rules: replace "System Defined Rule #N" with descriptive names
  (e.g. "Correctness Over Speed", "Never Guess") and add lookup helpers
- Usage view: replace cumulative input/output token display with live context tokens,
  cache hit rate calculation, and separate cache read/write stats
- Telemetry: remove verbose doc comments, simplify trait definitions
- Facts view: simplify delete permission check (always allow local deletion)
- Remove warp_managed_paths_watcher.rs (dead code)

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

app/src/launch_configs/launch_config_tests.rs

@@ -5,7 +5,7 @@ use crate::{
         AppState, BranchSnapshot, LeafContents, LeafSnapshot, NotebookPaneSnapshot, PaneFlex,
         PaneNodeSnapshot, SplitDirection, TabSnapshot, TerminalPaneSnapshot, WindowSnapshot,
     },
-    drive::OpenWarpDriveObjectSettings,
+    drive::OpenGalaxyDriveObjectSettings,
     tab::SelectedTabColor,
 };
 
@@ -81,7 +81,7 @@ fn test_config_from_snapshot_flattens_single_pane() {
                     custom_vertical_tabs_title: None,
                     contents: LeafContents::Notebook(NotebookPaneSnapshot::CloudNotebook {
                         notebook_id: None,
-                        settings: OpenWarpDriveObjectSettings::default(),
+                        settings: OpenGalaxyDriveObjectSettings::default(),
                     }),
                 }),
             ),
@@ -151,7 +151,7 @@ fn test_config_from_snapshot_filters_panes() {
                     custom_vertical_tabs_title: None,
                     contents: LeafContents::Notebook(NotebookPaneSnapshot::CloudNotebook {
                         notebook_id: None,
-                        settings: OpenWarpDriveObjectSettings::default(),
+                        settings: OpenGalaxyDriveObjectSettings::default(),
                     }),
                 }),
             ),
@@ -215,7 +215,7 @@ fn test_config_from_snapshot_filters_tabs() {
                 custom_vertical_tabs_title: None,
                 contents: LeafContents::Notebook(NotebookPaneSnapshot::CloudNotebook {
                     notebook_id: None,
-                    settings: OpenWarpDriveObjectSettings::default(),
+                    settings: OpenGalaxyDriveObjectSettings::default(),
                 }),
             }),
         )],
@@ -285,7 +285,7 @@ fn test_config_with_active_tab_index_and_filtered_tabs() {
                             custom_vertical_tabs_title: None,
                             contents: LeafContents::Notebook(NotebookPaneSnapshot::CloudNotebook {
                                 notebook_id: None,
-                                settings: OpenWarpDriveObjectSettings::default(),
+                                settings: OpenGalaxyDriveObjectSettings::default(),
                             }),
                         }),
                     )],
@@ -376,7 +376,7 @@ fn test_config_with_active_tab_being_filtered() {
                             custom_vertical_tabs_title: None,
                             contents: LeafContents::Notebook(NotebookPaneSnapshot::CloudNotebook {
                                 notebook_id: None,
-                                settings: OpenWarpDriveObjectSettings::default(),
+                                settings: OpenGalaxyDriveObjectSettings::default(),
                             }),
                         }),
                     )],