fix(lvl5): lint table parser — abra renders HEAVY box verticals (┃ U+2503); accept both; meta registry EXPECTED_NA/BACKUP_CAPABLE wording → regenerated doc table

Found by real-abra smoke on cc-ci: hedgedoc clean → pass; +lightweight tag →
fail R014. Full suite 246 passed on cc-ci venv.

runner/harness/meta.py

@@ -70,13 +70,13 @@ KEYS: tuple[Key, ...] = (
         "BACKUP_CAPABLE",
         "bool",
         None,
-        "Override the backup-tier capability auto-detect (compose `backupbot.backup` labels). `False` forces N/A; `True` forces the tier on; unset = auto-detect.",
+        "Override the backup-tier capability auto-detect (compose `backupbot.backup` labels). `False` forces an intentional skip of the backup/restore rung; `True` forces the tier on; unset = auto-detect.",
     ),
     Key(
         "EXPECTED_NA",
         "dict",
         None,
-        "Declare an N/A rung intentional: `{rung: reason}`. The cap stands either way; only the report wording changes.",
+        "Declare a non-run rung an INTENTIONAL skip: `{rung: reason}` — the level climbs past it; an undeclared non-run rung is *unverified* and blocks the level above it (classification table: machine-docs/DECISIONS.md phase lvl5). Never overrides an exercised pass/fail; the `lint` rung has no escape hatch.",
     ),
     Key(
         "READY_PROBE",