v0.2.0-beta.2

Fixed

• GitHub now detects the license as Apache-2.0. LICENSE was
  byte-for-byte the canonical Apache-2.0 template except the appendix
  placeholders had been filled in (2026 Naanya Biz) and the closing
  paragraph re-wrapped, which is enough to flip GitHub's licensee
  matcher to NOASSERTION. Replaced LICENSE with the verbatim
  template from https://www.apache.org/licenses/LICENSE-2.0.txt and
  moved the copyright attribution to a sibling NOTICE file (Apache-2.0
  § 4(d)). Verify with
  gh api repos/NaanyaBiz/haggle/license --jq '.license.spdx_id' →
  Apache-2.0. Closes #54.
• MONETARY sensors no longer log a state-class warning on every poll.
  HA rejects state_class=MEASUREMENT on device_class=MONETARY; drop
  the invalid state_class from bill_projection, unit_rate, and
  supply_charge. Closes #49.
• Backfill loop now sleeps between per-day fetches and halts on 429.
  First-install backfill no longer fires up to 7 GETs in <1 s; on
  rate-limit the loop stops so the next 24 h cycle resumes from the
  gap rather than silently dropping post-429 days. Closes #34.
• Removing the integration now purges its entity-registry rows.
  async_remove_entry walks the registry and deletes orphans for the
  config entry, preventing _2-suffixed re-installs. Closes #50.

Changed

• Coordinator overlaps recorder reads. Both get_last_statistics
  lookups (consumption + cost) now run via asyncio.gather, halving
  the wall time of the resume-point computation. Closes #35.
• Code cleanup. Drop unused SCAN_INTERVAL_DAILY,
  SCAN_INTERVAL_PLAN, TOKEN_REFRESH_MARGIN_SECONDS constants; drop
  the __all__ re-export block from agl/client.py; correct the
  agl/__init__.py docstring to reference agl-api-explorer. Remove
  defensive NotImplementedError catches in the coordinator and the
  dict-fallback branch in HaggleEnergySensor.native_value — neither
  path is reachable from production code. Closes #37, #38.

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