SMA-2: each inverter is reached through a driver; GoodWe behaviour unchanged

app/drivers.py holds one Driver per roster entry (configured, actuator_id,
limits, read, write, release, probe, link_stale_s, batt_bound, settle_s, brand,
words). GoodWeEsphomeDriver makes the calls the code it replaced made, in the
same order. Inverter gets driver; has_writer, is_live and link_note read it. The
SoC/power read, the write, the device range (run_control, amain, the settings
panel), rule 2 per unit and the SAFETY-28 census go through it.

setpoint_entity is optional per entry beside driver, host, port, unit_id and
maintenance; only goodwe_esphome is selectable, the rest are checked and unused.

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

goodwe_controller/test_translations.py

@@ -75,7 +75,7 @@ check(f"the option surface was actually read - {len(ORDER)} options, not zero",
 check("...and the repeatable `inverters:` section's per-entry keys were read "
       "too, which is the half a top-level-only reader would miss",
       NESTED.get("inverters", [])[:2] == ["name", "setpoint_entity"]
-      and len(NESTED["inverters"]) == 8)
+      and len(NESTED["inverters"]) == 13)         # SMA-2: +5 driver keys
 
 print("\n2. AC: every option and every per-entry key is translated, in BOTH "
       "languages")
@@ -281,7 +281,7 @@ check("...and the accepted subset really does round-trip the shipped files - "
       f"per-entry keys came back out of each, which is what says the "
       f"strictness above is not just refusing everything",
       all(len(TR[lg]["configuration"]) == len(ORDER)
-          and len(TR[lg]["configuration"]["inverters"]["fields"]) == 8
+          and len(TR[lg]["configuration"]["inverters"]["fields"]) == 13
           for lg in LANGS))
 print("    ⚠️ the licence for this hand parser is NOT this file. "
       "tools/supervisor_shape_probe.py section F loads the same two files with "