fix(orchestrator): install_fresh skips pull when the image is local

Reconcile recreates route through install_fresh, which pulled
unconditionally: with git.tx1138.com dead, every boot reconcile of
archy-btcpay-db/archy-nbxplorer hard-failed on 'pulling ...' even
though both image:tags sat in local storage the whole time
(live-testing report 2026-07-10). Check image_exists first and only
pull when the ref is truly absent — the same semantics as
ensure_resolved_source_available and the generated quadlets'
Pull=never.

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

core/archipelago/src/container/prod_orchestrator.rs

@@ -2050,10 +2050,30 @@ impl ProdContainerOrchestrator {
                         lm.manifest.app.id
                     );
                 }
-                self.runtime
-                    .pull_image(&image, image_signature.as_deref())
-                    .await
-                    .with_context(|| format!("pulling {image}"))?;
+                // Reconcile recreates route through here too: an unreachable
+                // registry must not brick an app whose exact image:tag is
+                // already in local storage (boot reconcile of archy-btcpay-db
+                // /archy-nbxplorer with git.tx1138.com dead, 2026-07-10).
+                // Same exists-first semantics as
+                // ensure_resolved_source_available and the quadlets'
+                // Pull=never.
+                let exists = match self.runtime.image_exists(&image).await {
+                    Ok(exists) => exists,
+                    Err(err) => {
+                        tracing::warn!(
+                            image = %image,
+                            error = %err,
+                            "image existence check failed; pulling image instead"
+                        );
+                        false
+                    }
+                };
+                if !exists {
+                    self.runtime
+                        .pull_image(&image, image_signature.as_deref())
+                        .await
+                        .with_context(|| format!("pulling {image}"))?;
+                }
             }
             ResolvedSource::Build(mut bcfg) => {
                 // Resolve a relative context: against the manifest's own directory.
@@ -4195,6 +4215,8 @@ mod tests {
             StdMutex<HashMap<String, Vec<archipelago_container::manifest::SecretEnvRef>>>,
         /// If set, the next `build_image` call fails with this message.
         fail_build: StdMutex<Option<String>>,
+        /// If set, every `pull_image` call fails with this message.
+        fail_pull: StdMutex<Option<String>>,
         /// If set, `image_exists` fails for this image reference.
         fail_image_exists: StdMutex<HashMap<String, String>>,
         /// If set, `start_container` for this container fails with this message.
@@ -4248,6 +4270,9 @@ mod tests {
     impl ContainerRuntimeTrait for MockRuntime {
         async fn pull_image(&self, image: &str, _sig: Option<&str>) -> Result<()> {
             self.record(format!("pull_image:{image}"));
+            if let Some(msg) = self.fail_pull.lock().unwrap().clone() {
+                return Err(anyhow::anyhow!("{msg}"));
+            }
             self.mark_image_present(image);
             Ok(())
         }
@@ -4691,6 +4716,44 @@ app:
         assert!(!calls.iter().any(|c| c.starts_with("build_image:")));
     }
 
+    #[tokio::test]
+    async fn install_fresh_skips_pull_when_image_local() {
+        // An unreachable registry must not brick a reconcile recreate whose
+        // exact image:tag is already in local storage (archy-btcpay-db /
+        // archy-nbxplorer boot reconcile with git.tx1138.com dead,
+        // 2026-07-10).
+        let rt = Arc::new(MockRuntime::default());
+        rt.mark_image_present("docker.io/bitcoin/knots:28");
+        *rt.fail_pull.lock().unwrap() = Some("registry unreachable".into());
+        let orch = orch_with(rt.clone()).await;
+        orch.insert_manifest_for_test(
+            pull_manifest("bitcoin-knots", "docker.io/bitcoin/knots:28"),
+            PathBuf::from("/tmp/fixtures/bitcoin-knots"),
+        )
+        .await;
+
+        let name = orch.install("bitcoin-knots").await.unwrap();
+        assert_eq!(name, "bitcoin-knots");
+        let calls = rt.calls();
+        assert!(!calls.iter().any(|c| c.starts_with("pull_image:")));
+        assert!(calls.iter().any(|c| c == "start_container:bitcoin-knots"));
+    }
+
+    #[tokio::test]
+    async fn install_fresh_still_fails_when_image_truly_absent() {
+        let rt = Arc::new(MockRuntime::default());
+        *rt.fail_pull.lock().unwrap() = Some("registry unreachable".into());
+        let orch = orch_with(rt.clone()).await;
+        orch.insert_manifest_for_test(
+            pull_manifest("bitcoin-knots", "docker.io/bitcoin/knots:28"),
+            PathBuf::from("/tmp/fixtures/bitcoin-knots"),
+        )
+        .await;
+
+        let err = orch.install("bitcoin-knots").await.unwrap_err();
+        assert!(err.to_string().contains("pulling"), "err: {err}");
+    }
+
     #[tokio::test]
     async fn knows_app_reflects_loaded_manifests() {
         // The RPC install gate routes any app with a known manifest through