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/settings/import/alacritty_parser.rs

@@ -3,7 +3,7 @@ use async_recursion::async_recursion;
 use async_trait::async_trait;
 use galaxy_core::ui::{
     color::hex_color::coloru_from_hex_string,
-    theme::{AnsiColor, AnsiColors, TerminalColors, WarpTheme},
+    theme::{AnsiColor, AnsiColors, TerminalColors, GalaxyTheme},
 };
 use galaxyui::fonts::FontInfo;
 use serde::Deserialize;
@@ -289,7 +289,7 @@ impl AlacrittyTheme {
         } else {
             let bright = terminal_colors.bright;
             let accent = calculate_accent_color(background, foreground, cursor_color, bright);
-            Ok(ThemeType::Single(WarpTheme::new(
+            Ok(ThemeType::Single(GalaxyTheme::new(
                 background.into(),
                 foreground.into(),
                 accent.into(),