v0.10.0: Phase B — Storage Management UI Polish & Health Severity Fix

- Health severity fix: mount-point check downgraded from issue (FAIL) to warning (WARN)
- All storage health messages translated to Hungarian
- Success flash messages for all storage operations
- Edit storage path labels (inline edit UI + backend)
- App details per storage path on settings page (expandable list with names + sizes)
- Storage badge on stacks page showing which storage each app uses
- Deploy dropdown with free space display and low-space warning (<20%)
- Filesystem & disk info on settings page (ext4/btrfs, device, model via findmnt)
- Backup page storage context with per-app storage label badges

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

controller/README.md

@@ -24,7 +24,7 @@ controller generates secrets, saves app.yaml, runs `docker compose up -d`, and t
 with Traefik routing and health checks. The dashboard correctly shows real-time container states
 including health substatus (starting → healthy → running).
 
-Current version: **v0.7.2**
+Current version: **v0.10.0**
 
 ### What works
 - Dashboard with live container state (green/orange/yellow/red)
@@ -61,6 +61,12 @@ Current version: **v0.7.2**
 - Central hub reporting (periodic JSON push to felhom-hub service)
 - Notification preferences sync to hub (controller → hub on save + startup)
 - Notification system with email delivery via Resend API (hub relay)
+- Storage paths registry with auto-discovery, per-app HDD_PATH resolution, and multi-storage support
+- Storage management UI: add/remove paths, edit labels, set default, toggle schedulable
+- Per-app storage visibility: storage badges on stacks page, app details per storage path on settings page
+- Deploy dropdown with free space display and low-space warnings
+- Filesystem & disk info (ext4/btrfs, device, model) on settings page
+- Backup page storage context with per-app storage label badges
 
 ### Known issues / next priorities
 - Cloudflare Tunnel + Traefik TLS: paperless.demo-felhom.eu works locally but shows "Not secure" (certificate chain not fully validated through tunnel)
@@ -122,7 +128,9 @@ controller/
 │   │   ├── info_linux.go            # Linux: /proc/meminfo + statfs + loadavg + temperature
 │   │   ├── info_other.go            # Non-Linux stub
 │   │   ├── cpu_linux.go             # CPU collector (background /proc/stat sampling)
-│   │   └── cpu_other.go             # CPU collector stub (non-Linux)
+│   │   ├── cpu_other.go             # CPU collector stub (non-Linux)
+│   │   ├── mounts_linux.go          # Mount point, disk usage, FS info (findmnt, sysfs)
+│   │   └── mounts_other.go          # Non-Linux stubs for mount/disk/FS functions
 │   ├── monitor/
 │   │   ├── pinger.go                # Healthchecks.io HTTP ping client
 │   │   └── healthcheck.go           # System health checks (disk, mem, CPU, temp, Docker)
@@ -151,6 +159,7 @@ controller/
 │       └── templates/               # go:embed HTML/CSS files (Hungarian UI)
 │           ├── layout.html, dashboard.html, stacks.html, login.html
 │           ├── logs.html, deploy.html, app_info.html
+│           ├── settings.html, backups.html, monitoring.html
 │           └── style.css
 ├── configs/
 │   ├── controller.yaml.example      # Full config reference (infrastructure only)
@@ -171,7 +180,8 @@ controller/
 | **Config** | `internal/config/` | ✅ Done | Load & validate controller.yaml, env overrides |
 | **Stacks** | `internal/stacks/` | ✅ Done | Compose operations, scanning, metadata, deploy flow |
 | **API** | `internal/api/` | ✅ Done | REST endpoints (stacks, deploy, rescan, system info, health) |
-| **System** | `internal/system/` | ✅ Done | System resource info (RAM, disk, CPU, temperature, load) |
+| **Settings** | `internal/settings/` | ✅ Done | Persistent settings (password, notifications, storage paths, app backup prefs) |
+| **System** | `internal/system/` | ✅ Done | System resource info (RAM, disk, CPU, temperature, load, mount points, FS info) |
 | **Web** | `internal/web/` | ✅ Done | Hungarian dashboard, auth, deploy pages, asset serving |
 | **Sync** | `internal/sync/` | ✅ Done | Git-based app catalog sync (clone/pull, content-hash copy) |
 | **Scheduler** | `internal/scheduler/` | ✅ Done | Central job scheduler (periodic + daily, skip-if-running) |
@@ -391,7 +401,7 @@ docker compose up -d
 
 | Node | Hardware | Domain | IP | Status |
 |------|----------|--------|----|--------|
-| demo-felhom | Acemagic GK3PLUS N100, 16G RAM, 512G SSD + 1TB HDD | demo-felhom.eu | 192.168.0.162 | ✅ Controller v0.6.0 + Paperless-ngx running |
+| demo-felhom | Acemagic GK3PLUS N100, 16G RAM, 512G SSD + 1TB HDD | demo-felhom.eu | 192.168.0.162 | ✅ Controller v0.10.0 + Paperless-ngx running |
 | pi-customer-1 | Raspberry Pi 3B+, 1G RAM, 32G SD | pi-customer-1.local | — | 📲 Not yet tested |
 
 ### First deployment log (Paperless-ngx on demo-felhom)