update README.md to include clock and static text as data sources, and add widget alignment and connection indicator features

README.md

@@ -25,6 +25,7 @@ Hexagonal / ports-and-adapters with full CQRS. Domain logic has zero framework d
 │    tcp-server      binary protocol broadcast  │
 │    http-json       external API polling       │
 │    media, rss      source-specific adapters   │
+│    data-generators clock, static text         │
 │    auth            argon2 + JWT               │
 ├─────────────────── Shared ───────────────────┤
 │  protocol/       wire types, postcard serde   │
@@ -53,10 +54,12 @@ See `docs/adr/` for architectural decision records and `CONTEXT.md` for the doma
 
 ## Features
 
-- **Data sources**: HTTP/JSON, weather, media (Subsonic/Navidrome), RSS, webhooks
+- **Data sources**: HTTP/JSON, weather, media (Subsonic/Navidrome), RSS, webhooks, clock, static text
 - **Layout engine**: flexbox-like containers (row/column, fixed/flex sizing, gap, padding, justify-content, align-items)
 - **Theming**: 5 configurable colors (primary, secondary, accent, text, background), live push to clients
 - **Rich text**: inline color markup (`{primary}text{/}`, `{#FF0000}hex{/}`)
+- **Widget alignment**: per-widget horizontal/vertical text alignment (left/center/right, top/middle/bottom), reflected in layout preview
+- **Connection indicator**: green/red dot on ESP32 display showing server connectivity
 - **Overflow scroll**: bounce animation when content exceeds widget bounds, speed auto-derived from overflow
 - **Captive portal**: ESP32 AP mode with DNS + HTTP config form for WiFi provisioning
 - **Auth**: argon2 password hashing, JWT tokens, protected API routes