fix(orchestrator): normalize YAML-folded newlines in command drift comparison

Second false-drift source found live on .228 right after the entrypoint
split fix: a YAML `>-` script with more-indented continuation lines
keeps literal newlines in custom_args, but shell_join flattens them to
spaces when writing the quadlet Exec= line, so Config.Cmd stores spaces
where the manifest has newlines. bitcoin-knots and fedimint-gateway
read as permanently command-drifted over line breaks alone (only the
restart-sensitive guard kept them from recreate-looping like electrumx).

Normalize both sides the way shell_join does before comparing.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

core/archipelago/src/container/prod_orchestrator.rs

@@ -3882,12 +3882,28 @@ fn command_argv_drifted(
     current_entry: &[String],
     current_cmd: &[String],
 ) -> bool {
+    // Mirror shell_join's newline flattening: a YAML-folded manifest script
+    // keeps literal newlines in custom_args, but the quadlet Exec= line (and
+    // therefore Config.Cmd) has them as spaces. Normalize both sides so the
+    // same script never reads as drift over line breaks alone (bitcoin-knots
+    // and fedimint-gateway on .228, 2026-07-08).
+    let norm = |v: &[String]| -> Vec<String> {
+        v.iter().map(|s| s.replace(['\r', '\n'], " ")).collect()
+    };
+    let current_cmd = norm(current_cmd);
+    let expected_args = norm(expected_args);
     let Some(expected_entry) = expected_entry else {
         // No entrypoint override: the manifest args map to Cmd directly.
         return !expected_args.is_empty() && current_cmd != expected_args;
     };
-    let expected: Vec<&String> = expected_entry.iter().chain(expected_args).collect();
+    let expected: Vec<String> = norm(expected_entry)
-    let actual: Vec<&String> = current_entry.iter().chain(current_cmd).collect();
+        .into_iter()
+        .chain(expected_args.iter().cloned())
+        .collect();
+    let actual: Vec<String> = norm(current_entry)
+        .into_iter()
+        .chain(current_cmd.iter().cloned())
+        .collect();
     if expected_args.is_empty() {
         // With no manifest args, the container's trailing Cmd may be the
         // image's baked-in CMD — only the entrypoint prefix must match.
@@ -3943,6 +3959,30 @@ mod tests {
         ));
     }
 
+    #[test]
+    fn command_drift_tolerates_yaml_folded_newlines() {
+        // A YAML `>-` script with more-indented continuation lines keeps
+        // literal newlines in custom_args; shell_join flattens them to
+        // spaces when writing Exec=, so Config.Cmd has spaces where the
+        // manifest has newlines. Same script — not drift (bitcoin-knots /
+        // fedimint-gateway on .228).
+        let manifest_script = "if [ -z \"$X\" ]; then\n  X=1;\nfi; exec daemon";
+        let stored_script = "if [ -z \"$X\" ]; then   X=1; fi; exec daemon";
+        assert!(!command_argv_drifted(
+            Some(&sv(&["sh", "-lc"])),
+            &sv(&[manifest_script]),
+            &sv(&["sh"]),
+            &sv(&["-lc", stored_script]),
+        ));
+        // A genuinely different script still drifts after normalization.
+        assert!(command_argv_drifted(
+            Some(&sv(&["sh", "-lc"])),
+            &sv(&[manifest_script]),
+            &sv(&["sh"]),
+            &sv(&["-lc", "exec other_daemon"]),
+        ));
+    }
+
     #[test]
     fn command_drift_detected_when_argv_actually_differs() {
         assert!(command_argv_drifted(