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/persistence/sqlite.rs

@@ -86,7 +86,7 @@ use crate::cloud_object::{
 };
 use crate::code::editor_management::CodeSource;
 use crate::drive::folders::{CloudFolder, CloudFolderModel, FolderId};
-use crate::drive::OpenWarpDriveObjectSettings;
+use crate::drive::OpenGalaxyDriveObjectSettings;
 use crate::env_vars::{CloudEnvVarCollection, CloudEnvVarCollectionModel};
 use crate::features::FeatureFlag;
 use crate::notebooks::{CloudNotebook, NotebookId};
@@ -2519,7 +2519,7 @@ fn read_node(conn: &mut SqliteConnection, node: model::PaneNode) -> Result<PaneN
                         Some(path) => NotebookPaneSnapshot::LocalFileNotebook { path: Some(path) },
                         None => NotebookPaneSnapshot::CloudNotebook {
                             notebook_id,
-                            settings: OpenWarpDriveObjectSettings::default(),
+                            settings: OpenGalaxyDriveObjectSettings::default(),
                         },
                     })
                 }
@@ -2537,7 +2537,7 @@ fn read_node(conn: &mut SqliteConnection, node: model::PaneNode) -> Result<PaneN
 
                     LeafContents::Workflow(WorkflowPaneSnapshot::CloudWorkflow {
                         workflow_id,
-                        settings: OpenWarpDriveObjectSettings::default(),
+                        settings: OpenGalaxyDriveObjectSettings::default(),
                     })
                 }
                 CODE_PANE_KIND => {