* chore(kernel): tighten construction_affordances catalog invariants
- Delete stale make_proposal (deferred from PR #919; no live callers remain)
- Derive _PROPOSAL_FIRST_FAMILIES from _CATALOG keys to eliminate hidden
sync obligation (was a manual restatement of all four catalog entries)
- Introduce _SERVING_AUTHORIZED_FAMILIES frozenset so the serving-allowed
exemption in ConstructionFamily and ConstructionProposal __post_init__
consults one central authority instead of two string-literal comparisons
- Pre-compute _SORTED_FAMILIES at module load so all_diagnostic_families()
returns a constant rather than re-sorting on every call
- Remove _VALID_STATUS ClassVar from ConstructionProposal; the field is
already typed Literal["proposed"] and the indirection adds no safety
No behavior change to serving, assessment, or proposal creation paths.
ADR-0236: small load-bearing PR, single-file, invariants as code.
* refactor(contemplation): unify organ pipelines in pass_manager
- Introduce OrganPipeline descriptor (organ, reader, solver, reason_adapter)
so every routed solve path shares one _solve_and_verify implementation.
Adding a new organ is now a single OrganPipeline(...) declaration.
- Extract _maybe_ask helper that collapses the triply-duplicated
family_by_name / assess_from_family / exercise_ask inline block.
- Add _result() helper that appends the terminal Finding and constructs
ContemplationResult in one call, enforcing terminal-is-last-finding
by construction across every return site.
- Replace assert not isinstance(problem, Refusal) with
InternalContemplationError so the routing invariant is enforceable
under python -O and surfaces a named, debuggable exception.
No behavior change: all Terminal states, Finding sequences, family
resolution, CMB-over-R3 precedence, boundary-first ordering, and
ask/proposal emission logic are preserved exactly.
