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/integration_testing/notebook/step.rs

@@ -9,7 +9,7 @@ use string_offset::CharOffset;
 
 use crate::{
     cloud_object::{model::persistence::CloudModel, CloudObjectEventEntrypoint, Space},
-    drive::OpenWarpDriveObjectSettings,
+    drive::OpenGalaxyDriveObjectSettings,
     integration_testing::view_getters::{notebook_view, workspace_view},
     notebooks::manager::NotebookSource,
     server::{
@@ -83,7 +83,7 @@ pub fn open_notebook(window_key: impl Into<String>, notebook_key: impl Into<Stri
             WindowManager::as_ref(ctx).show_window_and_focus_app(*window_id);
             workspace.open_notebook(
                 &NotebookSource::Existing(*notebook_id),
-                &OpenWarpDriveObjectSettings::default(),
+                &OpenGalaxyDriveObjectSettings::default(),
                 ctx,
                 true,
             );

app/src/integration_testing/workflow/step.rs

@@ -4,7 +4,7 @@ use galaxyui::{
 
 use crate::{
     cloud_object::{model::persistence::CloudModel, CloudObjectEventEntrypoint, Space},
-    drive::OpenWarpDriveObjectSettings,
+    drive::OpenGalaxyDriveObjectSettings,
     integration_testing::view_getters::workspace_view,
     server::{
         cloud_objects::update_manager::UpdateManager,
@@ -70,7 +70,7 @@ pub fn open_workflow(window_key: impl Into<String>, workflow_key: impl Into<Stri
                 WindowManager::as_ref(ctx).show_window_and_focus_app(*window_id);
                 workspace.open_workflow_in_pane(
                     &WorkflowOpenSource::Existing(*workflow_id),
-                    &OpenWarpDriveObjectSettings::default(),
+                    &OpenGalaxyDriveObjectSettings::default(),
                     WorkflowViewMode::View,
                     ctx,
                 );