@PerMap and @Chunked(n) registries: rows read per map, a state and verbs written, every map checked

- @PerMap registry R of T from "file.lres" reads <maps root>/<map>/file.lres at run time
  (package.ludic's new `maps` line, default assets/maps); @Chunked(n) one file per chunk,
  {cx}/{cz} in its name. No as PREFIX, no constants, no def, never open.
- permap_gen: state R, r_load/_clear/_find/_path; chunked: RChunk, r_in/_out/_slot/_find/
  _clear/_path; a typed reset and fill per record over lres.ludic, rows, lists and list
  records pooled per table / chunk slot, @alloc_ok on what grows at high water.
- permap_consts: lres_consts__(), the program's int and float constants by name.
- permap_check: ludicc --check reads every map directory (fields, types, constants, fn,
  @OneOf/@Range/@Ref, cross-row @Ref keys in the same map, a key twice); --no-maps skips.
- @Ref(PerMapTable) is refused on a non-string field; the schema says scope/chunk per
  registry and scope map on such a Ref, and lists the canonical @Unit spellings; any other
  @Unit spelling is a warning naming the canonical one.
- reseeded (mac + win seeds; bootstrap-cfree out.ll == seed.ll).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

selfhost/main.ludic

@@ -158,6 +158,7 @@ entry {
     else if a == "--save-temps" { save = true }
     else if a == "--run" { run = true }
     else if a == "--check" { g_check_only = true }
+    else if a == "--no-maps" { g_pm_no_maps = true }     # --check leaves the map directories alone (permap_check.ludic)
     else if a == "--release" { g_release = true }        # what ships: Build.schema_hash() is 0 (emit_schema_hash.ludic)
     else if a == "--diagnostics=json" { g_diag_json = true }     # every error, as JSON on stdout (diag.ludic)
     else if a == "--diagnostics=text" { g_diag_json = false }
@@ -257,6 +258,7 @@ entry {
   # --check: every check a build makes - the emitter refuses things too (a bind to a function that is
   # gone, an unknown name) - and nothing written
   if g_check_only {
+    pm_check_maps()                               # every map's tables against their records (permap_check.ludic)
     emit_program()
     if g_dg_errors > 0 { diag_exit(1) }
     diag_exit(0)