feat(harness): intentional skips + custom-html-tiny functional test; 4-rung ladder (#6)

Declare intentional skips + custom-html-tiny functional test; 4-rung level ladder

- recipe_meta.EXPECTED_NA = {rung: reason} lists intentionally-skipped rungs; any
  essential rung skipped and not listed is unintentional. Skips still cap the level
  (never inflate). results.json: skips:{intentional,unintentional} + level_cap_rung.
- Level ladder = the four essential rungs (install, upgrade, backup/restore,
  functional; top = L4). integration & recipe-local are optional, not leveled
  (SSO still enforced for the run verdict, unchanged).
- Card shows skipped rungs as INTENTIONAL SKIP (green, reason below) / UNINTENTIONAL
  SKIP (amber); level badge gains an expected/gap? third segment.
- custom-html-tiny: functional serve test (exact-byte round-trip + 404); declares
  backup_restore intentionally skipped (stateless static server).

Independently verified by the adversary: 138 unit tests pass cold; live full-stage
run on custom-html-tiny green (upgrade tier ran; level 2; correct skips/badge);
clean teardown.

runner/run_recipe_ci.py

@@ -200,6 +200,7 @@ def _load_meta(recipe: str) -> dict:
         for k in list(meta) + [
             "BACKUP_CAPABLE",
             "SKIP_GENERIC",
+            "EXPECTED_NA",
             "OIDC_AT_INSTALL",
             "READY_PROBE",
             "UPGRADE_BASE_VERSION",
@@ -1224,7 +1225,6 @@ def main() -> int:
     # a failure here NEVER changes `overall` (R7 — cosmetics never block the pipeline). ----
     data: dict | None = None
     try:
-        sso_unverified = sso_dep_unverified(declared, deps_ready, requires_deps_skipped)
         clean_teardown = (deploy_count == expected_deploy_count) and not dep_teardown_error
         data = results_mod.build_results(
             recipe=recipe,
@@ -1234,13 +1234,11 @@ def main() -> int:
             records=records,
             results=results,
             backup_capable=backup_cap,
-            declared=declared,
-            deps_ready=deps_ready,
-            sso_unverified=sso_unverified,
             clean_teardown=clean_teardown,
             no_secret_leak=True,  # narrowed below by an actual scan of the serialised artifact
             screenshot=screenshot_rel,  # Phase 3 U1 (R4): relative PNG name iff capture succeeded
             finished_ts=time.time(),
+            expected_na=meta.get("EXPECTED_NA"),  # declared intentional-skip map (recipe_meta)
         )
         # Real (if narrow) leak check: no known infra-secret value may appear in the artifact (R7).
         blob = json.dumps(data)
@@ -1257,6 +1255,15 @@ def main() -> int:
             f"{' — ' + data['level_cap_reason'] if data['level_cap_reason'] else ''})",
             flush=True,
         )
+        # Surface UNINTENTIONAL skips in the CI log (non-blocking, R7): a rung that was skipped (N/A)
+        # but is not in the recipe's intentional list — either add the missing coverage or declare it.
+        for rung in data.get("skips", {}).get("unintentional", []):
+            print(
+                f"⚠ coverage: rung '{rung}' was skipped (N/A) but is not declared intentional — add "
+                f"the missing test/label, or list it in tests/{recipe}/recipe_meta.py "
+                f"EXPECTED_NA = {{'{rung}': '<why>'}}.",
+                flush=True,
+            )
     except Exception as e:  # noqa: BLE001 — results assembly is cosmetic; never fail a run on it (R7)
         print(
             f"!! results.json assembly failed (non-fatal, verdict unaffected): {_scrub(str(e))}",
@@ -1275,8 +1282,19 @@ def main() -> int:
             with open(html_path, "w", encoding="utf-8") as f:
                 f.write(card_mod.render_card_html(data, screenshot_rel=data.get("screenshot")))
             png = card_mod.render_card_png(html_path, os.path.join(run_artifact_dir, "summary.png"))
+            capped = data.get("level_cap_rung")
+            sk = data.get("skips", {})
+            cap_skip = (
+                "intentional" if capped in (sk.get("intentional") or {})
+                else "unintentional" if capped in (sk.get("unintentional") or [])
+                else ""
+            )
             with open(os.path.join(run_artifact_dir, "badge.svg"), "w", encoding="utf-8") as f:
-                f.write(card_mod.level_badge_svg(data["level"], data.get("level_cap_reason", "")))
+                f.write(
+                    card_mod.level_badge_svg(
+                        data["level"], data.get("level_cap_reason", ""), cap_skip
+                    )
+                )
             print(
                 f"summary card {'rendered ' + png if png else '(PNG render unavailable)'} + "
                 f"badge.svg written into {run_artifact_dir}",