docs: update development changelog and config for energyforecast API v2 and Fronius capacity

- Add changelog entries for energyforecast API v2 migration (#371/#365):
  energyforecast_total_price provider type, market_zone parameter,
  energyforecast_96 removed from add-on
- Add changelog entry for Fronius GEN24 optional fixed battery capacity
- config.yaml: add energyforecast_total_price to utility type list,
  add market_zone optional schema field, remove energyforecast_96,
  update capacity schema comment to reflect fronius_gen24 support

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

Author: MaStr

batcontrol-development/CHANGELOG.md

@@ -4,6 +4,17 @@
 
 ### New Features
 
+- **Fronius GEN24: Optional Fixed Battery Capacity**: The `fronius_gen24` inverter type now
+  accepts an optional `capacity` key (in Wh). When set, batcontrol uses this fixed value instead
+  of querying `DesignedCapacity` from the inverter's Solar API at startup. Useful for setups where
+  the API reports an incorrect capacity. Non-finite or non-numeric values are rejected at startup.
+
+- **Energyforecast Total Price Provider** (#371): New `energyforecast_total_price` provider type
+  uses the API-computed `total_ct_kwh` field directly, which already includes dynamic network fees,
+  VAT, and markup as calculated by energyforecast.de. The `vat`, `fees`, and `markup` config fields
+  are not required and `dynamic_network_fees` must not be enabled alongside this type (the API
+  already includes network fees in its total).
+
 - **Solcast Rooftop API as Solar Forecast Provider**: Solcast (https://solcast.com) is now
   supported as a solar forecast provider with native 30-minute resolution. The free hobbyist
   account grants 10 API calls per day; batcontrol scales the refresh interval automatically
@@ -41,6 +52,14 @@
 
 ### Configuration Changes
 
+- **Energyforecast migrated to API v2** (#371, closes #365): The energyforecast provider now uses
+  the `/api/v2/forecast` endpoint. Data is always quarter-hourly (15-min native resolution),
+  multi-day forecasts are returned natively, and a minimum 4-hour refresh interval is enforced.
+  A new optional `market_zone` config key (default: `DE`) selects the price zone; `DE` and `LU`
+  are both normalized to `DE-LU` for the API (supported zones: DE, LU, AT, FR, NL, BE, PL, DK1,
+  DK2). The `energyforecast_96` provider type has been **removed** from the add-on — migrate to
+  `energyforecast`, which now provides equivalent multi-day coverage via API v2.
+
 - **Resilient Inverter Wrapper enabled by default** (#399): The `enable_resilient_wrapper`
   option now defaults to `true`. The resilient wrapper retries failed inverter commands and
   suppresses transient communication errors so batcontrol keeps running through short inverter

batcontrol-development/config.yaml

@@ -63,8 +63,9 @@ options:
     # outage_tolerance_minutes: 24 # Optional: Minutes to tolerate inverter outages before terminating (default: 24)
     # retry_backoff_seconds: 60 # Optional: Seconds to wait before retrying after failure (default: 60)
   utility:
-    type: awattar_de #tibber, awattar_at, awattar_de, evcc, energyforecast, energyforecast_96, tariff_zones
-    apikey: Zz-YOURAPIKEYYOURAPIKEYXXXXX # only required for tibber & energyforecast
+    type: awattar_de #tibber, awattar_at, awattar_de, evcc, energyforecast, energyforecast_total_price, tariff_zones
+    apikey: Zz-YOURAPIKEYYOURAPIKEYXXXXX # only required for tibber, energyforecast, energyforecast_total_price
+    # market_zone: DE # optional for energyforecast/energyforecast_total_price: DE/LU (both -> DE-LU, default), AT, FR, NL, BE, PL, DK1, DK2
     url: http://evcc.local:7070/api/tariff/grid # only required for evcc
     vat: 0.19 # only required for awattar and energyforecast
     fees: 0.015 # only required for awattar and energyforecast
@@ -176,7 +177,7 @@ schema:
     address: str? # the local IP of your inverter. Required for fronius_gen24
     user: list(customer|technician)? # Required for fronius_gen24
     password: password?
-    capacity: int(0,)? # (MQTT)  Battery capacity in Wh, required for mqtt
+    capacity: int(0,)? # Battery capacity in Wh: required for mqtt, optional for fronius_gen24 (overrides DesignedCapacity)
     min_soc: int(0,100)? # (MQTT) Minimum SoC %, optional for mqtt (default: 5)
     max_soc: int(0,100)? # (MQTT)  Maximum SoC %, optional for mqtt (default: 100)
     cache_ttl: int(0,)? # (MQTT)  Cache TTL for SOC values in seconds, optional for mqtt (default: 120)
@@ -193,8 +194,9 @@ schema:
     outage_tolerance_minutes: int(1,)? # Minutes to tolerate inverter outages before terminating (default: 24)
     retry_backoff_seconds: int(1,)? # Seconds to wait before retrying after failure (default: 60)
   utility:
-    type: list(tibber|awattar_at|awattar_de|evcc|energyforecast|energyforecast_96|tariff_zones)
-    apikey: password? # only required for tibber & energyforecast
+    type: list(tibber|awattar_at|awattar_de|evcc|energyforecast|energyforecast_total_price|tariff_zones)
+    apikey: password? # only required for tibber, energyforecast, energyforecast_total_price
+    market_zone: str? # optional for energyforecast/energyforecast_total_price (default: DE; DE/LU -> DE-LU)
     url: str? # only required for evcc
     vat: float(0,10)? # only required for awattar and energyforecast
     fees: float(0,10)? # only required for awattar and energyforecast