Fix Warping indicator stuck after Bedrock LLM finishes responding

Bedrock was calling suggest_next_prompt tool which created a SuggestPrompt
action that waited forever on a oneshot channel for UI interaction that
never fires in the Bedrock path, keeping the conversation permanently
InProgress. Fixed by filtering the tool from the Bedrock tool list and
skipping it at the stream level when the LLM calls it from context history.

Also includes: Bedrock cache token tracking, cost estimation, LSP
improvements, conversation usage view updates, and external config support.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

crates/galaxy_features/src/lib.rs

@@ -831,6 +831,18 @@ pub enum FeatureFlag {
     VerticalTabsSummaryMode,
 
     CloudModeInputV2,
+
+    /// Enables LSP-based code completion (autocomplete) in the code editor.
+    LspCompletion,
+
+    /// Enables LSP code actions (quick fixes, refactorings) in the code editor.
+    LspCodeActions,
+
+    /// Enables LSP-based symbol rename in the code editor.
+    LspRename,
+
+    /// Enables LSP signature help (parameter hints) in the code editor.
+    LspSignatureHelp,
 }
 
 static FLAG_STATES: [AtomicBool; cardinality::<FeatureFlag>()] =