fix: gate Error_*.txt snapshots behind GALAXY_BEDROCK_DIAGNOSTICS env var

Previously, Bedrock error snapshots were unconditionally written to disk
on any API or stream failure. Now they are only written when
GALAXY_BEDROCK_DIAGNOSTICS=1 is set, consistent with the rest of the
diagnostic logging.

Bumps version to 1.2.1.

Cargo.lock

@@ -5191,7 +5191,7 @@ dependencies = [
 
 [[package]]
 name = "galaxy"
-version = "1.1.0"
+version = "1.2.1"
 dependencies = [
  "addr",
  "aho-corasick",

WARP.md

@@ -37,9 +37,9 @@ Environment variables:
 - `find . -name "*.wgsl" -exec wgslfmt --check {} +` - Check WGSL shader formatting
 
 ### Bedrock Diagnostics
-- Bedrock request or stream failures automatically write `Error_<timestamp>.txt` to the repository root.
-- The error snapshot file includes the serialized Bedrock context window, tool definitions, protobuf request debug payload, captured Bedrock diagnostic lines, and log tails.
-- Set `GALAXY_BEDROCK_DIAGNOSTICS=1` to additionally write per-event Bedrock diagnostic logs to `bedrock-diagnostics.log` in the active Warp log directory.
+- Set `GALAXY_BEDROCK_DIAGNOSTICS=1` to enable Bedrock diagnostic output, including:
+  - `Error_<timestamp>.txt` snapshot files written to the repository root on request/stream failures (includes the serialized Bedrock context window, tool definitions, protobuf request debug payload, captured Bedrock diagnostic lines, and log tails)
+  - Per-event Bedrock diagnostic logs written to `bedrock-diagnostics.log` in the active Warp log directory
 
 ### Platform Setup
 - `./script/bootstrap` - Platform-specific setup (calls platform-specific bootstrap scripts)

app/Cargo.toml

@@ -5,7 +5,7 @@ description = "Galaxy - AI-powered terminal"
 edition = "2021"
 autobins = false
 name = "galaxy"
-version = "1.2.0"
+version = "1.2.1"
 publish.workspace = true
 license.workspace = true
 

app/src/ai/bedrock/diagnostic.rs

@@ -211,6 +211,9 @@ impl BedrockDiagnosticLogger {
     }
 
     pub fn dump_error_snapshot(&self, error: &str, debug_error: &str) -> Option<PathBuf> {
+        if !is_enabled() {
+            return None;
+        }
         let conversation_id = self
             .conversation_id
             .lock()