v1.2.2 — Surface gap-fill diagnostics

Changes

• New diagnostic counts in the result panel (visible whenever Fill Gaps is enabled):
  • Total destination rows
  • "Good" rows actually used for gap detection
  • Hidden rows (unavailable / unknown — HA omits these from the History chart even though they are physically present in the database)
  • Number of gap intervals at or above the configured threshold that were detected
• Skip unavailable / unknown source states during mid-stream and trailing fill. Importing them would just add more hidden rows that widen the visual gap on the next run instead of closing it.
• New skipped (source was unavailable/unknown in a gap) counter so this is visible when it kicks in.