fix: version stamping and heartbeat error visibility

APP_VERSION env var at runtime; --set-build-env-vars never reached the
Docker ARG. Heartbeat catch now logs to console.error for diagnosis.

Author: cbullinger

.github/workflows/ci.yml

@@ -128,7 +128,7 @@ jobs:
             --region $REGION \
             --project $PROJECT_ID \
             --allow-unauthenticated \
-            --set-env-vars="^|^CONFIG_REPO_OWNER=grove-platform|CONFIG_REPO_NAME=github-copier|CONFIG_REPO_BRANCH=main|PEM_NAME=CODE_COPIER_PEM|WEBHOOK_SECRET_NAME=webhook-secret|MONGO_URI_SECRET_NAME=mongo-uri|WEBSERVER_PATH=/events|MAIN_CONFIG_FILE=.copier/main.yaml|USE_MAIN_CONFIG=true|DEPRECATION_FILE=deprecated_examples.json|COMMITTER_NAME=GitHub Copier App|COMMITTER_EMAIL=bot@mongodb.com|GOOGLE_CLOUD_PROJECT_ID=github-copy-code-examples|COPIER_LOG_NAME=code-copier-log|AUDIT_ENABLED=true|METRICS_ENABLED=true|OPERATOR_UI_ENABLED=true|OPERATOR_AUTH_REPO=grove-platform/github-copier|OPERATOR_REPO_SLUG=grove-platform/github-copier|LLM_PROVIDER=anthropic|LLM_BASE_URL=https://grove-gateway-prod.azure-api.net/grove-foundry-prod/anthropic|LLM_MODEL=claude-haiku-4-5|ANTHROPIC_API_KEY_SECRET_NAME=anthropic-api-key|GITHUB_APP_ID=${{ secrets.APP_ID }}|INSTALLATION_ID=${{ secrets.INSTALLATION_ID }}" \
+            --set-env-vars="^|^CONFIG_REPO_OWNER=grove-platform|CONFIG_REPO_NAME=github-copier|CONFIG_REPO_BRANCH=main|PEM_NAME=CODE_COPIER_PEM|WEBHOOK_SECRET_NAME=webhook-secret|MONGO_URI_SECRET_NAME=mongo-uri|WEBSERVER_PATH=/events|MAIN_CONFIG_FILE=.copier/main.yaml|USE_MAIN_CONFIG=true|DEPRECATION_FILE=deprecated_examples.json|COMMITTER_NAME=GitHub Copier App|COMMITTER_EMAIL=bot@mongodb.com|GOOGLE_CLOUD_PROJECT_ID=github-copy-code-examples|COPIER_LOG_NAME=code-copier-log|AUDIT_ENABLED=true|METRICS_ENABLED=true|OPERATOR_UI_ENABLED=true|OPERATOR_AUTH_REPO=grove-platform/github-copier|OPERATOR_REPO_SLUG=grove-platform/github-copier|LLM_PROVIDER=anthropic|LLM_BASE_URL=https://grove-gateway-prod.azure-api.net/grove-foundry-prod/anthropic|LLM_MODEL=claude-haiku-4-5|ANTHROPIC_API_KEY_SECRET_NAME=anthropic-api-key|APP_VERSION=${{ steps.version.outputs.tag }}|GITHUB_APP_ID=${{ secrets.APP_ID }}|INSTALLATION_ID=${{ secrets.INSTALLATION_ID }}" \
             --set-build-env-vars="VERSION=${{ steps.version.outputs.tag }}" \
             --tag="${{ steps.version.outputs.traffic_tag }}" \
             --max-instances=10 \

CHANGELOG.md

@@ -6,6 +6,11 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+### Fixed
+
+- **Version always showing "dev"** — `--set-build-env-vars` does not propagate to Docker `ARG` values in Cloud Run's buildless deploy path. App now reads `APP_VERSION` env var at startup as a runtime fallback; CI deploy sets it via `--set-env-vars`.
+- **Disconnected chip diagnosis** — heartbeat `catch` handler now logs the fetch error to `console.error` so the root cause is visible in DevTools when the chip appears.
+
 ## [v0.4.1] - 2026-05-02
 
 ### Fixed

app.go

@@ -19,8 +19,18 @@ import (
 //	go build -ldflags "-X main.version=v1.0.0"
 //
 // When not set (local dev builds), it defaults to "dev".
+// Cloud Run: pass APP_VERSION in --set-env-vars as a runtime fallback since
+// --set-build-env-vars does not automatically reach Docker ARG values.
 var version = "dev"
 
+func init() {
+	if version == "dev" {
+		if v := os.Getenv("APP_VERSION"); v != "" {
+			version = v
+		}
+	}
+}
+
 func main() {
 	// Parse command line flags
 	var envFile string

services/web/operator/index.html

@@ -912,7 +912,7 @@ <h3>Keyboard shortcuts</h3>
 
 /* Heartbeat (#6) */
 var _connected=true;
-function startHeartbeat(){if(!COP_ORIGIN)return;setInterval(function(){fetch(appURL('/operator/api/status')).then(function(r){if(!_connected){_connected=true;$('tbConn').hidden=true;toast('Reconnected to server','info');}}).catch(function(){if(_connected){_connected=false;$('tbConn').hidden=false;toast('Connection lost to server','error');}});},60000);}
+function startHeartbeat(){if(!COP_ORIGIN)return;setInterval(function(){fetch(appURL('/operator/api/status')).then(function(r){if(!_connected){_connected=true;$('tbConn').hidden=true;toast('Reconnected to server','info');}}).catch(function(e){console.error('[heartbeat] fetch failed:',e);if(_connected){_connected=false;$('tbConn').hidden=false;toast('Connection lost to server','error');}});},60000);}
 
 /* Server status */
 function checkServerStatus(){