# Caddy 404 Investigation

## Summary
The live response from `https://dashboard.wuchinguo.duckdns.org/doc/agent-team-profile-spec.md` is a real `404` generated by **Caddy**. That means the request is reaching Caddy successfully, but the current site configuration is not mapping the URL path to the files that were created under `~/automation/pub`.

## Evidence Collected
- Response headers include `Server: Caddy`.
- Local files exist at:
  - `~/automation/pub/index.html`
  - `~/automation/pub/doc/test.html`
  - `~/automation/pub/dashboard/index.html`
  - `~/automation/pub/dashboard/doc/test.html`
  - `~/automation/pub/dashboard/doc/agent-team-profile-spec.md`
- All of these URLs currently return `404`:
  - `/`
  - `/index.html`
  - `/doc/test.html`
  - `/dashboard/`
  - `/dashboard/index.html`
  - `/dashboard/doc/test.html`

## What This Means
There are two likely explanations:
1. **The Caddy site root is not pointing at `~/automation/pub` on this machine**, or the files are not on the filesystem Caddy is serving.
2. **The Caddyfile path mapping does not match the URL path structure** and/or Caddy has not been reloaded after the directory change.

## Path Mapping Interpretation
If Caddy serves `~/automation/pub` as the site root, then documents under the dashboard tree should be reachable at:
- `https://dashboard.wuchinguo.duckdns.org/dashboard/doc/agent-team-profile-spec.md`

If Caddy serves `~/automation/pub/dashboard` as the site root, then the same file should be reachable at:
- `https://dashboard.wuchinguo.duckdns.org/doc/agent-team-profile-spec.md`

Because both currently return `404`, the active Caddy configuration is not aligned with either layout yet.

## Recommended Caddyfile Patterns
### Option A: Serve the dashboard folder as the site root
```caddy
 dashboard.wuchinguo.duckdns.org {
     root * /opt/data/home/automation/pub/dashboard
     file_server
 }
```

### Option B: Keep `~/automation/pub` as the site root and mount dashboard under `/dashboard`
```caddy
 dashboard.wuchinguo.duckdns.org {
     root * /opt/data/home/automation/pub
     handle_path /dashboard/* {
         root * /opt/data/home/automation/pub/dashboard
         file_server
     }
 }
```

## Test Files Added
- `/opt/data/home/automation/pub/index.html`
- `/opt/data/home/automation/pub/doc/test.html`
- `/opt/data/home/automation/pub/dashboard/index.html`
- `/opt/data/home/automation/pub/dashboard/doc/test.html`

## Next Check
If you paste the current Caddyfile path or the exact site block, I can pinpoint the mismatch and give you the exact edit needed.