docs(install): stitch the README → template first-run handoff — item 6 complete

Slice (c), the last of the docs review: the install/first-run story
read end to end against the tree. Facts held (mkFlake args match the
table, disko's @snapshots + hibernation swapfile, .#default/.#me
naming); the one seam — README §3 never pointed the manual path at the
template README's first-run steps — got a connective paragraph. Item 6
deleted from BACKLOG; ROADMAP § Full docs review flipped to ✓.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

docs/ROADMAP.md

@@ -353,18 +353,15 @@ how to override it. Items marked ✓ are shipped.
     hand-formatting, so `nixfmt-rfc-style --check` flags ~33 files. Adopting a
     formatter would be a one-time repo-wide reformat that flattens that
     alignment — a maintainer call, not a silent cleanup, so left untouched.
-- **Full docs review & restructure:** a dedicated pass over all the prose,
-  not just the code-adjacent cleanup the repo-sanitize item covers. The
-  README has grown to ~540 lines with a ~200-line roadmap inline — the
-  biggest single move is likely **splitting the roadmap out** (e.g.
-  `ROADMAP.md` / `docs/`) so the README stays a focused "what it is / how
-  to install / how to override" entry point. Also: reconcile every option
-  table against the live `nomarchy.*` surface (snapper and others are
-  missing); a pass over `docs/OVERRIDES.md` + `docs/TESTING.md` and the
-  `templates/downstream/README.md` for drift; check the install/first-run
-  story reads cleanly end to end; and decide whether anything wants a real
-  docs site vs. staying Markdown-in-repo. Pairs with the first-boot welcome
-  and control-center items (shared "how do I…" surface).
+- ✓ **Full docs review & restructure** (completed 2026-07-04 in four
+  slices): the roadmap/backlog split (this file + agent/BACKLOG.md);
+  option tables reconciled with the live surface and guarded permanently
+  by `checks.option-docs`; drift pass over OVERRIDES/TESTING/template
+  README (claims held; two gaps fixed); the install/first-run story now
+  hands off README §3 → template README explicitly; and a new
+  **docs/RECOVERY.md** runbook (generations → journals → older boot
+  generation → snapper → nixos-enter). Still open, deliberately: the
+  docs-site-vs-Markdown call (BACKLOG § Decisions).
 - **Laptop power / battery management:** a real power story behind a
   `nomarchy.system.power.*` surface (`modules/nixos/power.nix`), replacing the
   old "only `services.upower` for Waybar reporting" baseline: