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/code_review/code_review_view.rs

@@ -172,7 +172,7 @@ use crate::{
     editor::InteractionState,
     pane_group::pane::{view, BackingView, PaneEvent},
     send_telemetry_from_ctx,
-    themes::theme::WarpTheme,
+    themes::theme::GalaxyTheme,
 };
 
 use vec1::Vec1;
@@ -1383,7 +1383,7 @@ impl CodeReviewView {
         let init_project_button = ctx.add_typed_action_view(|_ctx| {
             ActionButton::new("Initialize codebase", NakedTheme)
                 .with_size(ButtonSize::Small)
-                .with_tooltip("Enables codebase indexing and WARP.md")
+                .with_tooltip("Enables codebase indexing and GALAXY.md")
                 .with_tooltip_alignment(TooltipAlignment::Center)
                 .on_click(|ctx| {
                     ctx.dispatch_typed_action(CodeReviewAction::InitProjectForCurrentDirectory)
@@ -5528,7 +5528,7 @@ impl CodeReviewView {
 
     fn styled_file_content_container(
         content: Box<dyn Element>,
-        theme: &WarpTheme,
+        theme: &GalaxyTheme,
     ) -> Box<dyn Element> {
         Container::new(
             Flex::row()

app/src/code_review/comment_rendering.rs

@@ -43,7 +43,7 @@ pub(crate) struct HeaderClickHandler {
 /// (rounded corners, neutral background, outline border).
 fn comment_card_container(
     content: Box<dyn Element>,
-    theme: &galaxy_core::ui::theme::WarpTheme,
+    theme: &galaxy_core::ui::theme::GalaxyTheme,
 ) -> Box<dyn Element> {
     Container::new(content)
         .with_corner_radius(CornerRadius::with_all(Radius::Pixels(8.)))