fix: complete printing cohort verification and pin its contract

Keep the compiler-clean label test helper and record the passed 193-case verification and matching protocol fixture pin without changing runtime behavior.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Signed-off-by: James Maes <james@kof22.com>

.github/workflows/ci.yml

@@ -29,7 +29,7 @@ jobs:
         uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
         with:
           repository: QRun-IO/qqq-print-protocol
-          ref: a26c18c90c7d6102bbe26eb50cbb90fcd1bd46e3
+          ref: 42c0d249f81395f00408ec0f92638dcbbf5deb03
           path: qqq-print-protocol
           persist-credentials: false
       - uses: actions/setup-java@be666c2fcd27ec809703dec50e508c2fdc7f6654 # v5.2.0

CHANGELOG.md

@@ -12,6 +12,14 @@ metadata, not by comparing versions. An agent that does not advertise
 `printer-media-v1` stays a three-capability peer and cannot claim a job carrying a
 media selection, whatever extension version it discovers.
 
+- Built-in test prints add 4 x 1 and 4 x 2 inch labels (203/300/600 dpi) beside the unchanged
+  4 x 6 path: compact PDF and ZPL layouts, and for short PDF labels an explicit actual-size
+  job paper (`paperWidthMm`/`paperHeightMm`, a complete positive pair up to 2000 mm, never
+  combined with a media profile). 4 x 6 and page profiles keep using the queue default.
+- Strict source standards: Error Prone 2.51.0 and NullAway run as errors with `-Werror` on
+  main and test sources, with honest `@Nullable` contracts, strict source headers and
+  development-fixture style gates. No authorization, retained-source, replay or queue
+  behavior was changed by this work.
 - Realtime shutdown now waits, with a bound, for channel workers that are already
   running before the host's durable state is released. Previously the executor was
   only told to stop, so a late drain could query a stopped file database and

README.md

@@ -27,7 +27,7 @@ Java/.NET WebSocket jobs and S3 checks without an installed connector or printer
 
 ## Build and verify
 
-Install Java 21. Clone this repository and `qqq-print-protocol` as siblings. This source pins protocol commit `f3cbc02e9b0fb4fdfefaa59d976c04df747cc589`; use that commit for reproducible compatibility tests. Use the checked-in wrapper (Maven 3.9.11).
+Install Java 21. Clone this repository and `qqq-print-protocol` as siblings. This source pins protocol commit `42c0d249f81395f00408ec0f92638dcbbf5deb03` (the integrated contract under Gitea PR 2; the same ref CI checks out); use that commit for reproducible compatibility tests. Use the checked-in wrapper (Maven 3.9.11).
 
 ```powershell
 .\mvnw.cmd verify

docs/SESSION-STATE.md

@@ -14,10 +14,14 @@ Its four conflicts (`PrintingProcesses`, `PrintingService`, `PrintingTestDocumen
 resolved by keeping all label behavior and tests and layering the strict contracts: `jobOptions` is
 `@Nullable` (null means the queue default applies), `validPaperMillimetres` accepts a missing value, redundant
 return wrappers are removed, and no suppression or rule change was added. Submission, authority, retained
-binding, replay and queue code paths were not edited. **Pending, not observed:** the release cohort compile and
-full verify, hosted CI, the final protocol fixture pin (the CI fixture ref still names the earlier reviewed
-commit until the merged protocol sha is pinned), publication and any physical print. The installed printer
-default is untouched; no printing was performed.
+binding, replay and queue code paths were not edited.
+
+**Local gate passed (observed):** on the merged cohort, main and test compile clean under the strict compiler and
+the full `-Pui-demo verify` passed with 193 tests, 0 failures, 0 errors, one intentional opt-in 10,000-job skip and
+0 Checkstyle violations. CI and the README pin the final protocol commit
+`42c0d249f81395f00408ec0f92638dcbbf5deb03` (merged Gitea protocol PR 2); earlier pins elsewhere in this file are
+historical. **Still pending, not observed:** hosted Gitea CI, publication, installation and any physical print. The
+installed printer default is untouched; no printing was performed.
 
 ## Echo operator/media and retained-source candidate — 2026-11-01
 

docs/TODO.md

@@ -40,9 +40,10 @@
 
 - [x] Merge the 4 x 1 / 4 x 2 label profiles, compact PDF/ZPL layouts, explicit PDF job paper and their tests
   onto the strict standards tree, keeping the strict headers, null contracts and Error Prone fixes.
-- [ ] Run the single cohort gate (compile, full verify, compiler guard) on the merged tree; no result is claimed yet.
-- [ ] Pin the final merged protocol fixture sha in CI and confirm version/protocol references agree across the cohort.
-- [ ] Observe hosted CI, then publish; physical confirmation of the short labels stays an owner step (4 x 6 stock is loaded).
+- [x] Cohort gate passed locally on the merged tree: strict main/test compile and full `-Pui-demo verify`, 193 tests,
+  0 failures, 0 errors, one intentional opt-in skip, 0 Checkstyle violations.
+- [x] CI and the README pin the final protocol commit `42c0d249f81395f00408ec0f92638dcbbf5deb03` (merged Gitea PR 2).
+- [ ] Observe hosted Gitea CI, then publish and install; physical confirmation of the short labels stays an owner step (4 x 6 stock is loaded).
 
 ## Current local development qualification
 

src/test/java/com/kingsrook/qbits/printing/PrintingTestDocumentsTest.java

@@ -221,7 +221,7 @@ class PrintingTestDocumentsTest
     ***************************************************************************/
    private static byte[] reconstructGraphicStrips(String zpl, int rowBytes, int height)
    {
-      return (reconstructGraphicStrips(zpl, rowBytes, height, 2));
+      return reconstructGraphicStrips(zpl, rowBytes, height, 2);
    }