weblogchecker 0.2.2

Second-pass expert-review fix release.

Second-pass expert-review fix (N4) and family consistency.

• N4: the findings cap is now severity-aware. Finding keys
  are admitted against per-severity partitions of the
  100,000-key cap (info 5%, low 45%, medium 30%, high 20%)
  instead of one first-come pool, so a flood of low-signal
  findings (e.g. a botnet's shell probes, one key per source
  IP) can no longer consume the capacity for medium/high
  findings - a real shell finding late in a hostile log is
  still reported. Severity upgrades of admitted keys are
  never blocked. When any tracked state is truncated, the
  verdict headline itself now reads "INCOMPLETE RESULTS"
  (previously only findings_truncated and a NOTE said so),
  and the truncation note lists findings dropped by
  severity.
• Family consistency: JSON reports now carry
  schema_version: 1. (--version already existed.)
• Regression tests for N4 (reviewer's flood shape, medium
  flood, upgrade accounting, incomplete verdict with zero
  findings) and the report contract; 66/66 tests pass under
  both unittest and pytest, false-positive gate included.