Bump version to v1.6.3 (pre-release)

Five changes, all merged since v1.6.2 and none of them touching the write path
that release changed:

  - SPH 3-6kW and 7-10kW report battery charge/discharge and load energy (#377)
  - SPF 3000-6000 ES Plus gains Max Charge Current, holding 34 (#376)
  - three-string MOD/MID/SPH stop dropping PV3 from the daily solar sum (#381)
  - DTC scans name their register map instead of reporting UNKNOWN (#379)
  - SPH V2.01 profiles no longer label battery discharge as grid import (#378)

Pre-release rather than stable. v1.6.2 has been out roughly a day and has no
field validation yet - the analytics feed still reports zero installs on it - so
this stays off the stable channel until someone has run either of them. Nothing
here reaches a user who has not opted into betas.

Cut now rather than after v1.6.2 is confirmed because the two are independent
channels, and three of the reporters waiting to confirm these fixes cannot test
without a build. Holding it back would have been waiting on confirmations that
the release itself is the prerequisite for.

920 tests pass, 9 skipped.

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

Author: 0xAHA

RELEASENOTES.md

@@ -4,9 +4,13 @@
 
 ---
 
-## Unreleased
+## v1.6.3 (pre-release)
 
-Merged to `main`, not yet in any release.
+Issues: #376, #377, #378, #379, #381
+
+> **Pre-release for testing.** v1.6.2 remains the stable release and is unaffected by
+> everything below. Most of this is SPH and SPF work that does not touch the write-path
+> changes in v1.6.2.
 
 - **SPH 3-6kW and 7-10kW now report battery charge and discharge energy.** Charge/Discharge
   Today and Total published a constant 0 on these profiles because the registers were never

custom_components/growatt_modbus/manifest.json

@@ -12,5 +12,5 @@
     "pymodbus>=3.0.0",
     "pyserial>=3.4"
   ],
-  "version": "1.6.2"
+  "version": "1.6.3"
 }