Archive the six competing, unratified problem-solving-paradigm formulations
(semantic-substrate master plan, state-transition blueprint, binding-graph
proposal, capability roadmap v2, eight sprint lookbacks, and ADR-0174's
deprecated dispatch prescription) to docs/paradigm-archive/, each prefixed
with a SUPERSEDED header. ADR-0164 and ADR-0174 stay in place (Accepted,
permanent record) with a Superseded-by: ADR-0252 line added. ADR-0252 itself
is a decision record only — it records the retirement and reserves the
governing paradigm content for a separate, human-led step.
No code changes; no behavior changes.
