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/cloud_object/mod.rs

@@ -25,7 +25,7 @@ use crate::{
     drive::{
         folders::{CloudFolderModel, FolderId},
         items::WarpDriveItem,
-        CloudObjectTypeAndId, OpenWarpDriveObjectArgs, OpenWarpDriveObjectSettings,
+        CloudObjectTypeAndId, OpenGalaxyDriveObjectArgs, OpenGalaxyDriveObjectSettings,
     },
     env_vars::CloudEnvVarCollectionModel,
     notebooks::{CloudNotebookModel, NotebookId},
@@ -935,7 +935,7 @@ where
 /// can be opened natively in Warp with no web interaction.
 pub fn extract_server_id_and_object_type_from_warp_drive_link(
     url: &Url,
-) -> Option<OpenWarpDriveObjectArgs> {
+) -> Option<OpenGalaxyDriveObjectArgs> {
     let server_id = url
         .path_segments()
         .and_then(|mut segments| segments.next_back())
@@ -958,13 +958,13 @@ pub fn extract_server_id_and_object_type_from_warp_drive_link(
 
     let invitee_email: Option<String> = query_string.get("invitee_email").map(|s| s.to_string());
 
-    Some(OpenWarpDriveObjectArgs {
+    Some(OpenGalaxyDriveObjectArgs {
         object_type,
         server_id: match server_id {
             Some(server_id) => server_id.try_into().ok()?,
             _ => return None,
         },
-        settings: OpenWarpDriveObjectSettings {
+        settings: OpenGalaxyDriveObjectSettings {
             focused_folder_id,
             invitee_email,
         },