v0.13.1: UI polish fixes round 2 (4 fixes)

- Fix 1: deploy-cross-drive card uses correct CSS vars (--bg-secondary, --border-color)
- Fix 2: Auto-generated env values — badge inline with label, remove copy buttons, muted readonly inputs
- Fix 3: Snapshot table shows 0 instead of n/a; remove unused .col-na CSS
- Fix 4: Disk warnings moved inline under storage bars (Inline alert field, GetInlineAlerts, inline-warning CSS)

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

CHANGELOG.md

@@ -1,5 +1,18 @@
 ## Changelog
 
+### What was just completed (2026-02-18 session 48)
+- **v0.13.1 — UI Polish Fixes Round 2 (4 fixes):**
+
+  **Fix 1:** Deploy page "Biztonsági mentés" section now has proper card border. Root cause: `.deploy-cross-drive` used undefined CSS variables `--card-bg` and `--border` (only `--bg-secondary` and `--border-color` exist). Fixed by using correct vars (`style.css`).
+
+  **Fix 2:** Auto-generated env values section cleaned up (`deploy.html`, `style.css`). Badge moved inline with label. "Másolás" buttons removed (native select+copy sufficient). Secret fields keep show/hide toggle. Non-secret fields now plain readonly input without button wrapper. Removed `copyAutoField()` JS. CSS updated: `.form-group-auto` now block layout (was flex row), label uses `display: flex; gap: .5rem`, badge downsized to `0.75rem / normal weight`, readonly inputs get muted background.
+
+  **Fix 3:** Snapshot table n/a → 0 (`backups.html`). Replaced `<span class="col-na" title="...">n/a</span>` with plain `0` in all three stats columns. Removed `.col-na` CSS class (no longer used).
+
+  **Fix 4:** Disk warnings moved from top banner to inline under storage bars (`alerts.go`, `layout.html`, `handlers.go`, `dashboard.html`, `monitoring.html`, `style.css`). Added `Inline bool` field to `Alert` struct. Disk-related warnings set `Inline: true`. Layout banner skips inline alerts. New `GetInlineAlerts(page)` method on `AlertManager`. Dashboard and monitoring handlers pass `DiskWarnings`. Inline warning block rendered below storage bars. New `.inline-warning*` CSS classes (compact, subtle, colored).
+
+  **Files modified (8):** `alerts.go`, `handlers.go`, `templates/style.css`, `templates/dashboard.html`, `templates/backups.html`, `templates/deploy.html`, `templates/monitoring.html`, `templates/layout.html`
+
 ### What was just completed (2026-02-18 session 47)
 - **v0.13.0 — UI Polish Fixes (8 independent fixes):**