Add FR/ES languages, modularize i18n to JSON, ISP color dots, adjust poll defaults

- Refactor i18n from single Python file to app/i18n/ package with per-language
  JSON files. Adding a new language now only requires dropping a .json file.
- Add French and Spanish translations with region-appropriate ISP lists
- Add colored brand dot next to ISP dropdown on setup and settings pages
- Change poll interval default from 5min to 15min, max from 1h to 4h

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

Author: itsDNNS

INSTALL.md

@@ -249,7 +249,7 @@ Click **Test Connection** to verify DOCSight can reach your router. If successfu
 | Field | Description | Default |
 |---|---|---|
 | **ISP** | Your internet provider name (for reports) | - |
-| **Poll Interval** | How often to read channel data (seconds) | `300` (5 min) |
+| **Poll Interval** | How often to read channel data (seconds) | `900` (15 min) |
 | **History Days** | How many days of snapshots to keep (0 = unlimited) | `0` (keep all) |
 | **Snapshot Time** | When to save the daily snapshot (server timezone, set `TZ` env var to change) | `06:00` |
 

README.md

@@ -36,7 +36,7 @@
 - **Health Assessment**: Automatic traffic-light evaluation with actionable recommendations
 - **Setup Wizard**: Browser-based configuration - no .env file needed
 - **Settings Page**: Change all settings at runtime, test connections, toggle themes
-- **Internationalization**: English and German UI
+- **Internationalization**: English, German, French, and Spanish UI
 - **LLM Export**: Generate structured reports for AI analysis (ChatGPT, Claude, Gemini, etc.)
 - **MQTT Auto-Discovery**: Zero-config integration with Home Assistant
 - **Optional Authentication**: Password-protected web UI with scrypt hashing
@@ -81,7 +81,7 @@ Copy `.env.example` to `.env` and edit:
 | `MQTT_USER` | - | MQTT username (optional) |
 | `MQTT_PASSWORD` | - | MQTT password (optional) |
 | `MQTT_TOPIC_PREFIX` | `docsight` | MQTT topic prefix |
-| `POLL_INTERVAL` | `300` | Polling interval in seconds |
+| `POLL_INTERVAL` | `900` | Polling interval in seconds |
 | `WEB_PORT` | `8765` | Web UI port |
 | `HISTORY_DAYS` | `0` | Snapshot retention in days (0 = unlimited) |
 | `ADMIN_PASSWORD` | - | Web UI password (optional) |

app/config.py

@@ -11,7 +11,7 @@
 log = logging.getLogger("docsis.config")
 
 POLL_MIN = 60
-POLL_MAX = 3600
+POLL_MAX = 14400
 
 SECRET_KEYS = {"modem_password", "mqtt_password"}
 HASH_KEYS = {"admin_password"}
@@ -26,7 +26,7 @@
     "mqtt_user": "",
     "mqtt_password": "",
     "mqtt_topic_prefix": "docsight",
-    "poll_interval": 300,
+    "poll_interval": 900,
     "web_port": 8765,
     "history_days": 0,
     "snapshot_time": "06:00",