docs: update documentatie voor app_volumes en tabs tree view

- CLAUDE.md: app_volumes.py in module-tabel, frontend tabs lijst, py_compile en smoke tests
- ARCHITECTURE.md: app_volumes.py in feature routers, py_compile en smoke tests
- API_GOLDEN.md: volumes endpoints gedocumenteerd (GET/POST/DELETE/prune/exists)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

ARCHITECTURE.md

@@ -44,6 +44,7 @@ Single deployable backend service, split into modules (routers) by domain.
    - `control/app_networks.py` — networks tab endpoints
    - `control/app_files.py` — files/workloads endpoints (tree/read/save/etc.)
    - `control/app_images.py` — images endpoints
+   - `control/app_volumes.py` — volumes endpoints (list/create/delete/prune/exists)
 
 4. **Shared Infrastructure Layer**
    - `control/common.py`
@@ -73,10 +74,11 @@ After any change affecting backend routing or shared helpers, run:
 ```bash
 python3 -m py_compile control/app.py control/common.py control/app_system.py \
   control/app_containers.py control/app_pods.py control/app_networks.py \
-  control/app_files.py control/app_images.py
+  control/app_files.py control/app_images.py control/app_volumes.py
 
 curl -fsS http://127.0.0.1:8081/api/health | jq
 curl -fsS http://127.0.0.1:8081/api/pods-dashboard >/dev/null && echo OK
 curl -fsS http://127.0.0.1:8081/api/containers-dashboard >/dev/null && echo OK
 curl -fsS http://127.0.0.1:8081/api/files/tree >/dev/null && echo OK
+curl -fsS http://127.0.0.1:8081/api/volumes >/dev/null && echo OK
 curl -fsS http://127.0.0.1:8081/api/networks/meta | jq

CLAUDE.md

@@ -19,6 +19,7 @@ podman-mvp is a Portainer-like web dashboard for managing rootless user-session
 | `app_pods.py` | Pods router: dashboard, pod actions |
 | `app_networks.py` | Networks router |
 | `app_images.py` | Images router |
+| `app_volumes.py` | Volumes router: list, create, delete, prune, exists |
 | `app_files.py` | Files/workloads router: tree, read, save |
 
 Backend communicates with Podman through the Unix socket at `/run/user/1000/podman/podman.sock` using `requests_unixsocket`. Podman API base: `http+unix://%2Frun%2Frun%2Fuser%2F1000%2Fpodman%2Fpodman.sock/v5.4.2`.
@@ -26,7 +27,7 @@ Backend communicates with Podman through the Unix socket at `/run/user/1000/podm
 ### Frontend — Static Apache (`webui/`)
 
 - `webui/html/index.html` — single-page app shell
-- `webui/html/assets/js/tabs/` — per-tab JavaScript modules (containers, networks, images, files)
+- `webui/html/assets/js/tabs/` — per-tab JavaScript modules (containers, networks, images, volumes, files)
 - `webui/conf/httpd.conf` — Apache config, proxies `/api/` → `http://127.0.0.1:8000/api/`
 
 ## Build & Deploy
@@ -60,13 +61,14 @@ podman run -d --pod mvp-pod --name mvp-webui \
 # Syntax check all backend modules
 python3 -m py_compile control/app.py control/common.py control/app_system.py \
   control/app_containers.py control/app_pods.py control/app_networks.py \
-  control/app_files.py control/app_images.py
+  control/app_files.py control/app_images.py control/app_volumes.py
 
 # Smoke test key endpoints (all via proxy on :8081)
 curl -fsS http://127.0.0.1:8081/api/health | jq
 curl -fsS http://127.0.0.1:8081/api/containers-dashboard >/dev/null && echo OK
 curl -fsS http://127.0.0.1:8081/api/pods-dashboard >/dev/null && echo OK
 curl -fsS http://127.0.0.1:8081/api/files/tree >/dev/null && echo OK
+curl -fsS http://127.0.0.1:8081/api/volumes >/dev/null && echo OK
 curl -fsS http://127.0.0.1:8081/api/networks/meta | jq
 ```
 

contracts/API_GOLDEN.md

@@ -149,6 +149,74 @@ Golden example:
 }
 
 
+==================================================
+GET /api/volumes
+==================================================
+
+Curl:
+curl -s http://127.0.0.1:8081/api/volumes
+
+Response type:
+Array of Podman volume objects (raw Podman passthrough).
+
+Golden keys per item:
+- Name
+- Driver
+- Mountpoint
+- CreatedAt
+- Labels
+
+Golden example:
+[
+  {
+    "Name": "my-volume",
+    "Driver": "local",
+    "Mountpoint": "/home/kodi/.local/share/containers/storage/volumes/my-volume/_data",
+    "CreatedAt": "2026-03-01T12:00:00Z",
+    "Labels": {}
+  }
+]
+
+
+==================================================
+POST /api/volumes
+==================================================
+
+Request body (JSON):
+- name (string, required)
+- driver (string, optional, default "local")
+- labels (object, optional)
+- driverOpts (object, optional)
+
+Response: created volume object (raw Podman passthrough).
+
+
+==================================================
+DELETE /api/volumes/{name}
+==================================================
+
+Response on success (204 from Podman):
+{"ok": true}
+
+Error responses forwarded from Podman (e.g. 409 if in use).
+
+
+==================================================
+POST /api/volumes/prune
+==================================================
+
+Response: array of pruned volume names (raw Podman passthrough).
+
+
+==================================================
+GET /api/volumes/{name}/exists
+==================================================
+
+Response:
+{"exists": true}   — volume bestaat (Podman 204)
+{"exists": false}  — volume niet gevonden (Podman 404)
+
+
 ==================================================
 GET /api/openapi.json
 ==================================================