v0.4.0-beta.1

Pre-release for community validation. Solar generation support (#128)
has not yet been confirmed against a live solar contract, and the
"pending" interval filter (#126) awaits confirmation from an affected
ToU account. Install via HACS with "Show beta versions" enabled.

Added

• Solar generation (feed-in) support (#128). Contracts that report
  hasSolar in /v3/overview now also fetch the ElectricitySolar Hourly
  endpoint each cycle and write two new statistics series per contract:
  • haggle:generation_<contract> — exported kWh (unit_class="energy"), an
    Energy-dashboard "Return to grid" source
  • haggle:generation_credit_<contract> — AUD feed-in credit
    Values come from the response's feedIn block (outer quantity/amount,
    same schema as consumption — documented from a real capture provided on
    #128). Two new sensors, Solar generation (cumulative kWh) and Solar
    feed-in credit (cumulative AUD), register only on solar contracts;
    non-solar installs are unchanged. Backfill, trailing-rewindow self-healing,
    and the earliest-fetched-hour baseline rule all apply to the new series.
    If solar is added to a contract later, the integration detects the
    hasSolar flip on the next poll and reloads to add the sensors.

Fixed

• Parser now filters consumption.type = "pending" intervals (#126). AGL
  returns "pending" (distinct from "none") for 30-min and daily slots where
  the AEMO meter read exists in their system but has not yet been delivered to the
  BFF — confirmed via proxy trace. These slots carry non-zero quantity/amount
  values that look real but are preliminary estimates; letting them through caused
  phantom readings in the statistics that were never overwritten once the real AEMO
  value arrived (unlike the zero-on-zero placeholder case). Both
  parse_interval_readings and parse_daily_readings now skip "pending" the
  same way they skip "none".

Changed

• Platform floor raised to Home Assistant 2026.7.0 (was 2026.6.3); hacs.json
  minimum bumped to match. Test harness pinned to
  pytest-homeassistant-custom-component>=0.13.344,<0.13.345 (which pins
  homeassistant==2026.7.0 and pytest==9.0.3); ruff>=0.15.20.
  pytest stays at >=8.0 — phcc==0.13.344 pins pytest==9.0.3 exactly, so
  the Dependabot pytest>=9.1.1 bump (#120) is unsatisfiable alongside phcc and
  is excluded from this rollup.
  aiohttp remains at >=3.13.5 — HA still pins aiohttp==3.13.5, so
  Dependabot PR #106 (aiohttp>=3.14.1) is left open until HA moves upstream.
• GitHub Actions rolled forward (all SHA-pinned):
  actions/checkout v7.0.0, actions/setup-python v6.3.0,
  github/codeql-action v4.36.3.

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