collector: tag CVEs yours/upstream/update + stop flagging the edge

cve: each image now carries an UPDATE STATUS in its title — [yours] (git.skui.io image,
fix in its repo), [update] (third-party, a NEWER image is published -> pull it), or
[upstream] (already running the latest published image -> clears only when the maintainer
rebuilds). 'Fixable' just means a patched package exists, not that you can apply it; the
status makes that explicit, and actionable findings now sort above the can't-touch ones.

config: the designated edge (SOC_EDGE, default 'traefik') is allowed to own 0.0.0.0:80/443
-- that is its job -- so it's reported as good rather than a false-positive finding.

sources/cve.py

@@ -1,8 +1,16 @@
-"""Container-CVE source: Trivy-scan running images, reporting only FIXABLE HIGH/CRITICAL CVEs.
+"""Container-CVE source: Trivy-scan running images for FIXABLE HIGH/CRITICAL CVEs,
+and — critically — label each with an UPDATE STATUS so the report distinguishes
+what's yours to fix from what's the maintainer's:
 
-`--ignore-unfixed` is the whole point: a CVE with no available patch isn't a to-do item,
-it's noise. We report only vulns that have a fix, grouped by package with the version to
-bump to — so each finding is a short, actionable list instead of a wall of CVE IDs.
+  [yours]    git.skui.io/* image  -> bump deps in its repo + rebuild (CI). Actionable.
+  [update]   third-party, a NEWER image is published -> pull + recreate. Actionable.
+  [upstream] third-party, already on the latest published image -> clears only when
+             the maintainer rebuilds. NOT actionable here; re-pull periodically.
+
+"Fixable" (Trivy --ignore-unfixed) only means a patched package version EXISTS — not
+that you can apply it. For an image you don't build and already run :latest of, the
+"bump X / rebuild base" advice is the maintainer's, not yours. The status makes that
+explicit, and actionable findings sort above the can't-do-anything ones.
 """
 import json
 import subprocess
@@ -11,6 +19,9 @@ from soc import finding
 
 from . import _docker
 
+OWN_PREFIX = "git.skui.io/"
+STATUS_RANK = {"yours": 0, "update": 1, "upstream": 2}
+
 
 def _running_images():
     conts = _docker.get("/containers/json") or []
@@ -35,9 +46,42 @@ def _scan(img):
     return [v for res in (rep.get("Results") or []) for v in (res.get("Vulnerabilities") or [])]
 
 
+def _registry_digest(img):
+    """The registry's current digest for img's tag, via the daemon (no pull). '' on error."""
+    try:
+        d = _docker.get(f"/distribution/{img}/json") or {}
+        return (d.get("Descriptor") or {}).get("digest", "")
+    except Exception:
+        return ""
+
+
+def _local_digests(img):
+    try:
+        info = _docker.get(f"/images/{img}/json") or {}
+        return [r.split("@")[-1] for r in (info.get("RepoDigests") or [])]
+    except Exception:
+        return []
+
+
+def _classify(img, pkgs):
+    """Return (status, fix_lines) — is this image actionable, and how?"""
+    bump = ", ".join(pkgs[:6]) + (" …" if len(pkgs) > 6 else "")
+    if img.startswith(OWN_PREFIX):
+        return "yours", [f"YOURS — bump {bump} in this repo, then rebuild (CI)"]
+    reg = _registry_digest(img)
+    if reg and reg in _local_digests(img):
+        return "upstream", [
+            "UPSTREAM — you already run the latest published image; this clears only when "
+            f"the maintainer rebuilds (with {bump}). Re-pull periodically; nothing to do here."]
+    if reg:
+        return "update", ["UPDATE AVAILABLE — a newer image is published; pull + recreate to get it"]
+    return "upstream", [
+        f"UPSTREAM — third-party image; the fix ({bump}) comes from the maintainer's rebuild"]
+
+
 def run():
     if not _docker.available():
-        return None  # socket not mounted -> skip
+        return None
     images = _running_images()
     if not images:
         return None
@@ -49,7 +93,6 @@ def run():
             clean += 1
             continue
         worst = "crit" if any(v.get("Severity") == "CRITICAL" for v in vulns) else "high"
-        # Group by package: which to bump, installed -> fixed, and how many CVEs it clears.
         pkgs = {}
         for v in vulns:
             p = v.get("PkgName", "?")
@@ -60,22 +103,28 @@ def run():
         evidence = "; ".join(f"{p} {d['inst']}→{d['fix']} ({d['n']})" for p, d in top)
         if len(pkgs) > 6:
             evidence += f"; +{len(pkgs) - 6} more package(s)"
-        findings.append(finding(
-            f"cve-{img}", worst,
-            f"{len(vulns)} fixable HIGH/CRITICAL CVE(s) in {img}", host=img,
-            evidence=evidence,
-            impact=[f"{len(vulns)} CVEs with an available patch across {len(pkgs)} package(s)"],
-            fix=[f"bump: {', '.join(p for p, _ in top)}" + (" …" if len(pkgs) > 6 else ""),
-                 f"or pull/rebuild a newer {img.split(':')[0]} base image"]))
 
-    findings.sort(key=lambda f: (f["sev"] != "crit", f["title"]))  # criticals first
+        status, fix = _classify(img, [p for p, _ in sorted(pkgs.items(), key=lambda kv: -kv[1]["n"])])
+        f = finding(
+            f"cve-{img}", worst,
+            f"[{status}] {len(vulns)} fixable HIGH/CRITICAL CVE(s) in {img}", host=img,
+            evidence=evidence,
+            impact=[f"{len(vulns)} CVEs with a published patch across {len(pkgs)} package(s)"],
+            fix=fix)
+        f["_status"] = status
+        findings.append(f)
+
+    # actionable first (yours, then update), then upstream; criticals first within each
+    sev = {"crit": 0, "high": 1, "med": 2, "low": 3}
+    findings.sort(key=lambda f: (STATUS_RANK.get(f.pop("_status", "upstream"), 2), sev.get(f["sev"], 9)))
+
     good = []
     if clean:
         good.append(f"{clean} of {len(images)} image(s) have no fixable HIGH/CRITICAL CVEs")
     if not findings and not good:
         good.append("No fixable HIGH/CRITICAL CVEs in any running image")
     return {
-        "scope": f"{len(images)} running image(s) — fixable HIGH/CRITICAL only",
+        "scope": f"{len(images)} running image(s) — fixable HIGH/CRITICAL, tagged yours/upstream/update",
         "findings": findings,
         "good": good,
     }