Adds an instance_history table that records every field change:
- createInstance logs a 'created' event
- updateInstance diffs old vs new and logs one row per changed field
(name, state, stack, vmid, tailscale_ip, all service flags)
- History is stored under the new vmid when vmid changes
New endpoint: GET /api/instances/:vmid/history
The 'timestamps' section on the detail page is replaced with a
grid timeline showing timestamp | field | old → new for each event.
State changes are colour-coded (deployed=green, testing=amber,
degraded=red). Boolean service flags display as on/off.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Adds a gear button to the nav that opens a settings modal with:
- Export: GET /api/export returns all instances as a JSON backup file
with a Content-Disposition attachment header
- Import: POST /api/import validates and bulk-replaces all instances;
client uses FileReader to POST the parsed JSON, with a confirm dialog
before destructive replace
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Root cause of the 500 on create/update/delete: the non-root app user in
the Docker container lacked write permission to the volume mount point.
Docker volume mounts are owned by root by default; the app user (added
in a previous commit) could read the database but not write to it.
Fixes:
1. Dockerfile — RUN mkdir -p /app/data before chown so the directory
exists in the image with correct ownership. Docker uses this as a
seed when initialising a new named volume, ensuring the app user
owns the mount point from the start.
NOTE: existing volumes from before the non-root user was introduced
will still be root-owned. Fix with:
docker run --rm -v catalyst-data:/data alpine chown -R 1000:1000 /data
2. server/routes.js — replace bare `throw e` in POST/PUT catch blocks
with console.error (route context + error) + explicit 500 response.
Add try-catch to DELETE handler which previously had none. Unexpected
DB errors now log the route they came from and return a clean JSON
body instead of relying on the generic Express error handler.
3. server/db.js — wrap the boot init() call in try-catch. Fatal startup
errors (e.g. data directory not writable) now print a clear message
pointing to the cause before exiting, instead of a raw stack trace.
TDD: tests written first (RED), then fixed (GREEN). Six new tests in
tests/api.test.js verify that unexpected DB errors on POST, PUT, and
DELETE return 500 with { error: 'internal server error' } and call
console.error with the route context string.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Three root causes addressed:
1. Added <base href="/"> to index.html so all relative asset paths
(css/app.css, js/*.js) resolve from the root regardless of the
current SPA route. Without this, /instance/117 requested
/instance/css/app.css, which hit the SPA fallback and returned
HTML; helmet's nosniff then refused it as a stylesheet.
2. Removed upgrade-insecure-requests from the CSP (useDefaults: false).
This directive told browsers to upgrade HTTP→HTTPS for every asset
request, breaking all resource loading on HTTP-only deployments.
3. Changed script-src-attr from 'none' to 'unsafe-inline' to allow
the inline onclick handlers used throughout the UI.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
