RangeProbe 0.3.0

Added

• Separate rangeprobe if-range URL CLI mode for bounded baseline, matching strong
  and random mismatching strong entity-tag probes. Conditional range support,
  observed 200 fallback, confirmed violations and insufficient evidence are separate.
• Opt-in --weak-if-range conformance probe, explicitly labelled deliberately invalid
  client input, and a reproducible historical Starlette #3567 parent/fixed lab with
  pinned validation dependencies and an independent status/header/byte oracle.
• Additive schema-1 If-Range evidence: exact validator octets in base64, final-request
  forwarding evidence, condition, identity, per-probe outcomes and run axes. No raw
  body capture or new Go runtime dependencies.

Changed

• If-Range mode rejects If-Match preconditions and other user precondition headers;
  managed If-Range is stripped across origins under the existing credential policy.
• This new mode gives incomplete evidence priority over allowed ignored Range in exit
  codes; legacy modes and old report meaning are preserved. Full-body observation is
  bounded and explicitly partial when cut off, independently of a successful fallback.