feat: ManualStrategy — community tier scheduling with full manual control
- Add ManualSlotConfig type with weekly repeating support and auto-expiry
- Add ManualStrategy (strategyId="manual"): applies user-defined allocations
exactly; expired slots logged and skipped; inflexible/critical loads always
applied as safety fallback; decisionReason never empty
- Extend SchedulerSettings with manualSlots persistence section (INI array)
- Extend SchedulerManager with setManualSlot/removeManualSlot/clearManualSlots
methods; hydrates ManualStrategy from settings on registerStrategy()
- Add JSON-RPC v11 methods: GetManualSlots, SetManualSlot, RemoveManualSlot,
ClearManualSlots + ManualSlotActivated push notification
- Register ManualStrategy in energypluginnymea.cpp::init() (no feature flag)
- Add 5 unit tests: basicSlot, noConfig_fallback, expiredSlot, repeatingSlot,
persistence (JSON round-trip)
- Update doc.md section 11
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>