tiergraph 0.7.0

Added

• Added bound pattern execution: one preparation answers exists, focus, spans
  and count, and one bound ordering serves many patterns. Raw orderings keep
  per-pattern scope overrides and refusal order; prebuilt orderings validate
  default scopes first.
• Added batched item insertion to the editing operation set.
• Added exact regular-pattern decisions and path counts over emitted finite
  lattices, with declared ambiguity policies and bounded determinization.
• Added string and JSON-array token emissions read from graph attributes.

Changed

• Promoted tiergraph.match and tiergraph.predicate to supported secondary
  APIs.