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/input_suggestions.rs

@@ -15,7 +15,7 @@ use galaxyui::elements::{
 };
 use galaxyui::ui_components::components::{Coords, UiComponent, UiComponentStyles};
 use galaxyui::{
-    accessibility::{AccessibilityContent, WarpA11yRole},
+    accessibility::{AccessibilityContent, GalaxyA11yRole},
     elements::{
         Align, AnchorPair, Border, ConstrainedBox, Container, CornerRadius, CrossAxisAlignment,
         DropShadow, Element, Empty, EventHandler, Flex, Highlight, Icon, OffsetPositioning,
@@ -591,13 +591,13 @@ impl InputSuggestions {
                 ctx.emit_a11y_content(AccessibilityContent::new(
                     format!("Suggestion: {text}.\n"),
                     desc,
-                    WarpA11yRole::MenuItemRole,
+                    GalaxyA11yRole::MenuItemRole,
                 ));
             }
             (Some(text), None) => {
                 ctx.emit_a11y_content(AccessibilityContent::new_without_help(
                     format!("Suggestion: {text}.\n"),
-                    WarpA11yRole::MenuItemRole,
+                    GalaxyA11yRole::MenuItemRole,
                 ));
             }
             _ => {}
@@ -621,7 +621,7 @@ impl InputSuggestions {
         if let Some(text) = self.get_selected_item_text() {
             ctx.emit_a11y_content(AccessibilityContent::new_without_help(
                 format!("Selected: {text}"),
-                WarpA11yRole::MenuItemRole,
+                GalaxyA11yRole::MenuItemRole,
             ));
         }
     }
@@ -646,7 +646,7 @@ impl InputSuggestions {
     ) {
         ctx.emit_a11y_content(AccessibilityContent::new_without_help(
             "Closed suggestions.",
-            WarpA11yRole::UserAction,
+            GalaxyA11yRole::UserAction,
         ));
         ctx.emit(Event::CloseSuggestion {
             should_restore_buffer_before_history_up,
@@ -1089,7 +1089,7 @@ impl View for InputSuggestions {
             // TODO use bindings from user settings
             "Navigate with tab and shift-tab, and confirm with enter. Execute selected command \
                 with command + enter. Esc leaves the suggestions menu.",
-            WarpA11yRole::MenuRole,
+            GalaxyA11yRole::MenuRole,
         ))
     }
 }