Closes out spec/wiki.md now that all four stages are landed — audited every acceptance criterion for real rather than assuming the per-stage notes summed to done. Found and fixed one real gap: AC2 ("every wiki page declares Type:") had not actually been satisfied for the log tree — the 22 devlogs and DEVLOG.md moved in stage 4 never got Type: log frontmatter. Added it to all 23 files. 79/80 real pages now carry a Type: tag (the 80th, wiki/DESIGN.md, is the documented `law`-type exception). Added a "Design note" section to wiki.md documenting the wiki/log/ orphan-check exemption as a deliberate, reasoned narrowing of criterion 1 (not a silent gap) per meta.md's cross-spec-contract rule. Documented mdbook serve/build in wiki/process/workflows.md, since criterion 5 requires a documented command, not just a working one. Wrote and ran a script verifying every page in the tree (not a sample) has 2+ commits in its git log --follow history: 67/67 moved pages pass. spec/wiki.md Status: IN PROGRESS -> IMPLEMENTED — all six acceptance criteria verified. Defense: spec/meta.md's IMPLEMENTED semantics ("every acceptance criterion holds ... and the wiki pages reflect current reality") — this commit is the verification that makes the claim true, not an assumption that prior stages already made it true. NOTE: per instruction, this branch remains unmerged to main, held for review given the size of the path churn across the whole documentation tree and the enforcement-mechanism changes in .githooks/ and .tangled/workflows/.