Release v0.8.0 — Portainer-first install, in-app guide

- Install from Portainer with no command line: paste the compose, set a
  folder and a password, deploy. Inspector creates its own config and
  detects Docker socket permissions by itself.
- Illustrated how-to guide inside the app (Help tab) and in the repo.
- Containers added in the UI are watched right away, no restart.
- maintenance_window switch on the container form.
- README with logo and screenshots; INSTALL rewritten for Portainer.

compose.yml

@@ -1,29 +1,38 @@
-# Inspector compose file for buddies / self-hosters.
-# Pulls the published image from gitea.euronvault.com.
+# Inspector — Portainer stack
 #
-# Before `docker compose up -d`:
-#   1. Copy config.example.yml -> config.yml and edit it.
-#   2. Set DOCKER_GID to your host's docker group GID:
-#        getent group docker | cut -d: -f3
-#      Export it in your shell or put it in a .env file next to this file.
-#   3. Optionally set INSPECTOR_TAG to pin a version
-#      (default: latest). Prefer a pinned X.Y.Z for production.
+# Paste this into Portainer: Stacks -> Add stack -> Web editor.
+# Then set these under "Environment variables" (Advanced mode lets you paste them):
+#
+#   INSPECTOR_DATA      Folder on your server for Inspector's files.
+#                       Unraid: /mnt/user/appdata/inspector   Other: /opt/inspector
+#   INSPECTOR_PASSWORD  Dashboard password (username is "admin").
+#                       Only used on first start; change it later in Settings.
+#   TZ                  Your timezone, e.g. America/Los_Angeles
+#
+# Optional:
+#   INSPECTOR_PORT      Port for the dashboard on your server (default 8080).
+#   INSPECTOR_TAG       Image version to run (default "latest"; e.g. 0.8.0 to pin).
+#   PUID / PGID         User/group Inspector runs as (default 1000/1000).
+#                       Unraid users often prefer 99 / 100.
+#
+# No config file to create, no docker group ID to look up: Inspector creates
+# its config on first start and detects Docker socket permissions by itself.
 services:
   inspector:
     image: gitea.euronvault.com/euronvault/inspector:${INSPECTOR_TAG:-latest}
     container_name: inspector
     restart: unless-stopped
-    # GID of the docker group on the host so the non-root user inside the
-    # container can read /var/run/docker.sock. Required.
-    group_add:
-      - "${DOCKER_GID:-999}"
     ports:
-      # Only published if dashboard.enabled is true in config.yml.
       - "${INSPECTOR_PORT:-8080}:8080"
     volumes:
+      # Lets Inspector see and restart your containers. Required.
       - /var/run/docker.sock:/var/run/docker.sock
-      - ./config.yml:/app/config.yml
-      - ./logs:/app/logs
-      - ./data:/app/data
+      # Settings (config.yml), logs, and event history. Kept across updates.
+      - ${INSPECTOR_DATA:-/opt/inspector}/config:/app/config
+      - ${INSPECTOR_DATA:-/opt/inspector}/logs:/app/logs
+      - ${INSPECTOR_DATA:-/opt/inspector}/data:/app/data
     environment:
       - TZ=${TZ:-UTC}
+      - INSPECTOR_PASSWORD=${INSPECTOR_PASSWORD:-}
+      - PUID=${PUID:-1000}
+      - PGID=${PGID:-1000}