ADR 0080: the development cycle is checked, not trusted

The flow the process overview draws — idea/symptom -> decision -> to-be design -> code ->
as-is — was enforced by nothing. cycle.py now refuses a to-be design naming no decision, an
in-progress/implemented design naming no owning code, a located/fixed issue with no owner,
a fixed/resolved issue with no fix, and a graduated research overview that does not say what
it became. AGENTS.md carries the cycle and a where-to-look table so a fresh session (or a
cleared context) finds the chain in frontmatter instead of assuming it. Grounding the check
surfaced two real gaps, fixed here: the work-ahead design named no owning code, and research
003 listed one became target twice.

https://claude.ai/code/session_01D6qtiYU3P9jk3pnAXyAFyx

02-DECISIONS/README.md

@@ -165,5 +165,6 @@ python3 00-META/checks/index.py            fail if stale
 - **0025** — [The design record is read where it is written, never copied to be found](0025-the-design-record-is-read-not-copied.md)
 - **0032** — [The local account owns the mesh; a surface delegates to a module](0032-the-local-account-owns-the-mesh.md)  *(superseded)*
 - **0034** — [The local account owns the mesh, and a web application's login is not that](0034-the-local-account-owns-the-mesh.md)
+- **0080** — [The development cycle is checked, not trusted](0080-the-development-cycle-is-checked.md)
 
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