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/ai/skills/file_watchers/skill_watcher.rs

@@ -15,9 +15,9 @@ use super::{
 use watcher::{BulkFilesystemWatcherEvent, HomeDirectoryWatcher, HomeDirectoryWatcherEvent};
 
 use crate::server::datetime_ext::DateTimeExt;
-use crate::warp_managed_paths_watcher::{
-    filter_repository_update_by_prefix, warp_managed_skill_dirs, WarpManagedPathsWatcher,
-    WarpManagedPathsWatcherEvent,
+use crate::galaxy_managed_paths_watcher::{
+    filter_repository_update_by_prefix, galaxy_managed_skill_dirs, GalaxyManagedPathsWatcher,
+    GalaxyManagedPathsWatcherEvent,
 };
 use ai::skills::{
     home_skills_path, parse_skill, ParsedSkill, SkillProvider, SKILL_PROVIDER_DEFINITIONS,
@@ -124,7 +124,7 @@ impl SkillWatcher {
                     }
                 },
             );
-            ctx.subscribe_to_model(&WarpManagedPathsWatcher::handle(ctx), |me, event, ctx| {
+            ctx.subscribe_to_model(&GalaxyManagedPathsWatcher::handle(ctx), |me, event, ctx| {
                 me.handle_warp_managed_paths_event(event, ctx);
             });
         }
@@ -138,7 +138,7 @@ impl SkillWatcher {
         // We use a separate HomeDirectoryWatcher to detect when those are created and start watching them after they are created.
         let mut home_provider_watchers = HashMap::new();
         if let Some(home_path) = home_dir {
-            Self::spawn_read_skills_from_directories(warp_managed_skill_dirs(), ctx);
+            Self::spawn_read_skills_from_directories(galaxy_managed_skill_dirs(), ctx);
             let skills_parent_paths: HashSet<PathBuf> = SKILL_PROVIDER_DEFINITIONS
                 .iter()
                 .filter(|provider| provider.provider != SkillProvider::Warp)
@@ -806,11 +806,11 @@ impl SkillWatcher {
 
     fn handle_warp_managed_paths_event(
         &mut self,
-        event: &WarpManagedPathsWatcherEvent,
+        event: &GalaxyManagedPathsWatcherEvent,
         ctx: &mut ModelContext<Self>,
     ) {
-        let WarpManagedPathsWatcherEvent::FilesChanged(update) = event;
-        for skill_dir in warp_managed_skill_dirs() {
+        let GalaxyManagedPathsWatcherEvent::FilesChanged(update) = event;
+        for skill_dir in galaxy_managed_skill_dirs() {
             if let Some(filtered_update) = filter_repository_update_by_prefix(update, &skill_dir) {
                 self.handle_repository_update(&filtered_update, ctx);
             }