[sayurin]

Summary

• Translate water heater entity states so the current mode and mode selector use localized labels.
• Preserve operation mode attribute translations by referencing the same source strings, and regenerate English and Japanese resources.
• Fixes 電気温水器(0x026B)の(EPC B0) 沸き上げ自動設定の表示について #139.

Validation

• Core: generated strings.json and English translations; echonet_lite suite passed (418 tests), including a regression test for both translation paths.
• Core: targeted prek passed, including hassfest; generated English state and attribute translations were verified equal.
• HACS: compileall, JSON validation and git diff --check passed; Japanese generator output and both translation paths were verified. HACS English translations match Core output.
• Core HA 2026.11.0 started in normal mode, returned HTTP 200, and was stopped. No water heater was available, so UI display, device operations and reconnection were not verified. HACS was not run in WSL; HACS device verification remains pending after release on a separate machine.
• Startup warnings: FFmpeg failed to start, previous SQLite shutdown could not be verified, optional compression libraries were unavailable, and asyncio slow-task warnings were recorded. The user accepted continuing; no ERROR was recorded.

Dependencies

• Core equivalent: sayurin/ha-core@eb1905d (hems-master; no Core PR).
• Tested with pyhems d580de95915188024b713d473cee51d47316ac00. No pyhems changes or PR are required; version and dependency pins are unchanged.