0.35.0

Contracts across a construction; seven defects of 0.34 fixed; the scope of
an LP typed; physical conflicts in assign. No new commands (62); one new
kind (66): construction. The schema stays 5; new optional fields:
resources and physical (assignment).

New

• ConstructionSpec, run by compose: graphs and resources under stable
  names, and steps that are contracts over them -- lift (resources carried
  from a child graph to its parent, the final packing and cover REBUILT and
  checked), catalogue (every one-vertex extension generated by the checker
  and mapped by an isomorphism or excluded by a forbidden induced subgraph;
  one omitted extension invalidates it), credit (owners partitioning the
  bases, every local state declared and covered, one cut distribution, the
  global sum in fractions), hosting (a matching per host, tied to the
  graph's edges), glue (ports consumed once, one owner per interior, no
  perforated cover taken for a closed one, a joint value only from a global
  witness), certificate (embedded, verified, tied to its obligation),
  cegis (a synthesised parameter backed by a certified resource), charts
  (an atlas: leaves recomputed, each chart's certificates tied to its
  selectors) and substitution (a change of coordinates with its
  denominator, inverse and inclusion checked). One construction
  certificate, re-derived by verify from its own file. Two examples:
  construction_split.json and construction_charts.json.
• AssignmentSpec(resources=...): no resource twice on a receiver. The
  relaxation's optimum that repeats one is named as such, not as a physical
  packing; a physical assignment is found and checked beside it.
• Typed LP scope: meta["scope"] is optimum, feasible, bound,
  float_candidate or infeasible. A zero objective now reports an EXACT
  FEASIBLE point, not an optimum, in opt and in verify.
• same_obligation binds sos certificates to their SOSSpec;
  same_program binds a farkas_ray to its program.
• Polynomials as text in data specs (certo.polynomials.parse_text): exact
  numbers, names, + - * /, ^, parentheses -- nothing else is read.

Fixed

• A region's products were named in the spec's order (g2*g10) and
  looked up in the verifier's (g10*g2): valid nonneg certificates failed
  their own self-check. Names are now canonical, a condition named with *
  is refused, and a certificate written by 0.34 still reads.
• nonneg ignored --timeout: the Bernstein tensor and the simplex of
  the multipliers now look at the clock, and a run stopped by it is TIMEOUT
  (and a verification stopped by it, inconclusive).
• A Fraction carrying gmpy2.mpz parts crashed exact elimination
  ("cannot create fmpz/fmpq"); foreign exact rationals are now read exactly
  (a gmpy2.mpq was rounded to a denominator of 10^12 before).
• A sum built with += over 1500 terms passed Python's recursion limit when
  read; the reader is now iterative.
• synth --prove-candidate --oneline (and --json) printed the search's
  line while writing the combined certificate; they now print the combined
  result, the one the file holds.
• A constant polynomial needed a box in nonneg; its sign is now read.
• same_obligation answered None for sos certificates.
• A clean install on Python 3.12+ could not import pulp: PuLP 4.1.0
  (like 4.0.1) imports numpy without declaring it. certo now declares
  numpy there.
• With CBC through PuLP 4, an infeasible LP came back "Undefined" and
  inconclusive; an exact Farkas ray is now sought and, checked, settles it.