chore(audit): triage webapp/tui/voxtype install-remove pairs

Pillar 3 Phase B, batch 3 — Batch A of the unused? clusters.

Deleted two dead webapp URI handlers:
- `nomarchy-webapp-handler-hey`
- `nomarchy-webapp-handler-zoom`

Neither was registered as a MimeType handler anywhere — a grep across
`*.desktop` files in `core/`, `features/`, `themes/`, `installer/`, and
`hosts/` returned zero matches. Without a `.desktop` registration the
system never routes `mailto:`/`zoom:`/`zoomus:` URIs to them, so the
handlers were unreachable code.

Kept the six remaining install/remove pairs (they're real CLI tools, just
unwired into any menu) and surfaced them in `SKILL.md` "Common Tasks" so
AI assistants can discover them on user request and the audit tags them
`kept`:
- Custom App Launchers: webapp-{install,remove,remove-all},
  tui-{install,remove,remove-all}
- Voice dictation: voxtype-{install,remove,status}

Menu-wiring these (e.g. a "Setup → Apps" submenu in nomarchy-menu) is a
separate Pillar 6 onboarding job, not scoped here.

Regenerated `docs/SCRIPTS.md` — script count 166 → 164, `unused?` 21 → 13.
Logged in `docs/ROADMAP.md` Shipped.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

docs/ROADMAP.md

@@ -121,6 +121,7 @@ Each PR description should reference the row(s) in `docs/SCRIPTS.md` it closes,
 
 (Move items here when they land — keep them brief, link the commit/PR.)
 
+- _2026-05-18_ — Pillar 3 Phase B: webapp/tui/voxtype install-remove pair triage. Deleted two dead webapp URI handlers (`nomarchy-webapp-handler-hey`, `nomarchy-webapp-handler-zoom`) — no `.desktop` MimeType registration anywhere routed `mailto:`/`zoom:` URIs to them, so the handlers could never fire. Surfaced six useful CLI tools in `SKILL.md` "Common Tasks" so they're discoverable by AI assistants and tagged `kept` by the audit: `nomarchy-webapp-{remove,remove-all}`, `nomarchy-tui-{remove,remove-all}`, `nomarchy-voxtype-{install,remove}`. Script count 166 → 164; `unused?` 21 → 13.
 - _2026-05-18_ — Pillar 3 Phase B: dead-code sweep (NixOS-irrelevant Omarchy ports). Deleted five scripts that duplicated NixOS-native facilities or referenced infrastructure Nomarchy doesn't ship: `nomarchy-rollback` (boot-menu generations + `nixos-rebuild rollback` already cover this), `nomarchy-snapshot` (used `snapper`; impermanence and BTRFS subvolumes are the Nomarchy answer), `nomarchy-migrate-state` (one-shot pre-unification migration, no current callers), `nomarchy-config-direct-boot` (added an EFI entry for a UKI we never build), and `nomarchy-npx-install` (Arch idiom — `nix-shell -p nodejs` is the NixOS path). Kept `nomarchy-build-iso` and `nomarchy-build-live-iso` and surfaced them in README §2 so the audit tags them `kept`. Script count 171 → 166.
 - _2026-05-18_ — Pillar 3 Phase B: missing-references triage. (1) Wrote `themes/engine/scripts/nomarchy-theme-next` so `SKILL.md`'s documented "cycle to next theme" command resolves; (2) scrubbed three stale `nomarchy-dev-*` references from `core/home/config/nomarchy-skill/SKILL.md`; (3) added a line-context filter to both `nomarchy-docs-scripts` generators that drops `nomarchy-*` tokens appearing in Nix `pname`/derivation idents, `/tmp/` & `/etc/sudoers.d/` paths, `nixosConfigurations.*` / `packages.*` flake outputs, `mktemp -t` prefixes, systemd unit vars, `./result/bin/run-` binaries, and `docker` container references; (4) added a small token-level denylist for five residual non-script identifiers (`nomarchy-plymouth`, `nomarchy-sddm-theme`, `nomarchy-live`, `nomarchy-rev`, `nomarchy-windows`) that survive line filtering. `docs/SCRIPTS.md` "Missing references" section is now empty (was 15).
 - _2026-05-04_ — Pillar 8: Distro Branding. (1) Scrubbed remaining "Omarchy" and "Spirit of Omarchy" references from README, scripts, and welcome wizard; (2) Updated `nomarchy-welcome` banner and `nomarchy-version` codename ("Sovereign"); (3) Verified existing `core/system/branding.nix` handles OS-release and bootloader labels; (4) Confirmed SDDM and Plymouth metadata are already Nomarchy-branded.