ci: fold parity into QA release validation (#74622)

Summary:
- The PR deletes the standalone `Parity gate` workflow, renames QA parity wording from gate to lane, routes docs toward QA/release validation, and adjusts the Docker E2E boundary guard for package-backed live lanes.
- Reproducibility: not applicable. as a CI/docs refactor. The high-confidence review path is static comparison of the repaired PR diff against current workflow/docs code plus exact-head check status.

ClawSweeper fixups:
- Included follow-up commit: ci: fold parity into QA release validation
- Ran the ClawSweeper repair loop before final review.

Validation:
- ClawSweeper review passed for head 3482654058.
- Required merge gates passed before the squash merge.

Prepared head SHA: 3482654058
Review: https://github.com/openclaw/openclaw/pull/74622#issuecomment-4359168336

Co-authored-by: Vincent Koc <vincentkoc@ieee.org>
Co-authored-by: clawsweeper <274271284+clawsweeper[bot]@users.noreply.github.com>

scripts/check-docker-e2e-boundaries.mjs

@@ -58,6 +58,7 @@ function validateUniqueLanes(label, lanes) {
 }
 
 function validateLane(label, lane) {
+  const resources = laneResources(lane);
   if (!lane.name || typeof lane.name !== "string") {
     errors.push(`${label}: Docker E2E lane is missing a string name`);
   }
@@ -70,7 +71,7 @@ function validateLane(label, lane) {
       `${label}: Docker E2E lane '${lane.name}' has invalid image kind '${lane.e2eImageKind}'`,
     );
   }
-  if (lane.live && lane.e2eImageKind) {
+  if (lane.live && lane.e2eImageKind && !resources.includes("npm")) {
     errors.push(`${label}: live Docker E2E lane '${lane.name}' must not require a package image`);
   }
   if (!lane.live && !lane.e2eImageKind) {
@@ -79,7 +80,7 @@ function validateLane(label, lane) {
   if (laneWeight(lane) < 1) {
     errors.push(`${label}: Docker E2E lane '${lane.name}' must have positive weight`);
   }
-  if (!laneResources(lane).includes("docker")) {
+  if (!resources.includes("docker")) {
     errors.push(`${label}: Docker E2E lane '${lane.name}' must include the docker resource`);
   }