fix(showcase): update CI workflows for gitignored generated data

- deploy workflow: add shared/scripts/manifest paths to shell-dashboard
  and shell-docs filters (previously triggered implicitly by committed
  JSON diffs in those directories)
- capture-previews: add generate-registry step before capture; use
  git add -f for the gitignored registry.json
- e2e smoke test: document generator dependency in import comment

Author: jpr5

.github/workflows/showcase_capture-previews.yml

@@ -106,6 +106,12 @@ jobs:
           echo "slugs=$CHANGED" >> $GITHUB_OUTPUT
           echo "Changed packages: $CHANGED"
 
+      - name: Generate registry
+        run: |
+          cd showcase/scripts
+          npm ci --silent
+          npx tsx generate-registry.ts
+
       - name: Capture previews
         run: |
           ARGS=""
@@ -140,7 +146,7 @@ jobs:
             echo "No registry changes"
             exit 0
           fi
-          git add registry.json
+          git add -f registry.json
           git commit -m "Update preview URLs in registry"
           # Rebase-and-retry loop: the capture job can take ~30 minutes,
           # during which other commits routinely land on main. Without

.github/workflows/showcase_deploy.yml

@@ -168,8 +168,14 @@ jobs:
               - 'showcase/packages/*/manifest.yaml'
             shell_dashboard:
               - 'showcase/shell-dashboard/**'
+              - 'showcase/shared/**'
+              - 'showcase/scripts/**'
+              - 'showcase/packages/*/manifest.yaml'
             shell_docs:
               - 'showcase/shell-docs/**'
+              - 'showcase/shared/**'
+              - 'showcase/scripts/**'
+              - 'showcase/packages/*/manifest.yaml'
 
       - name: Build service matrix
         id: build-matrix

showcase/tests/e2e/integration-smoke.spec.ts

@@ -16,6 +16,8 @@
 
 import { test, expect } from "@playwright/test";
 import { checkHealth, checkAgentEndpoint, sendChatMessage } from "./helpers";
+// Generated by showcase/scripts/generate-registry.ts — must run `npm run build`
+// in showcase/shell (or run the generator directly) before this test can import the file.
 import registry from "../../shell/src/data/registry.json";
 import localPorts from "../../shared/local-ports.json";