shard-jobs tests: non-hex plan id fixture; harness-version: shard-jobs FREE_ONLY entry is non-behavioral

Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>

scripts/harness-version.json

@@ -17,7 +17,7 @@
     "scripts/lib/published-text.ts": {"blob":"3f2e4d616b5dd0204035710c66b64d49055c5714","since":6},
     "scripts/lib/shard-engine.ts": {"blob":"dc714d7d897aed185c0ec3d2c92ad22d954039e5","since":6,"nonBehavioral":"createShardSandbox drops the Capy launch markers (GSTACK_SESSION_KIND, GSTACK_CAPY, GSTACK_EPHEMERAL, GSTACK_INSTALL_VERDICT) from shard environments; CI never sets them, so no case's input or verdict changes there, and on a Capy machine fixtures now see the session kind they set themselves instead of the installer's"},
     "scripts/test-paid-shards.ts": {"blob":"5439d0a8f6e1569fa7c924af20d67c30c81d5d30","since":6,"nonBehavioral":"credential rejections are classed infra instead of assertion: no case's pass or fail changes; only failed trials whose provider rejected the run's key move class, so no rerun spends on a rejected key"},
-    "scripts/test-pr-profile.ts": {"blob":"911e393d0c36c050c3a68db5a81ef21701bfd5ae","since":6,"nonBehavioral":"selection only: fragment exemption narrowed to .md files directly in the fragments dir; changed-file lists include a rename's old path; no case prompt, fixture, judge or verdict logic changes (GST-400)"},
+    "scripts/test-pr-profile.ts": {"blob":"594f9764f98add6e5e215b3a2d5f5067eb5c9e0f","since":6,"nonBehavioral":"FREE_ONLY_PR_FILES gains scripts/lib/shard-jobs.ts, a free-runner module; it changes which PR paths select paid cases, never how a case runs or is judged"},
     "scripts/test-strict-output.ts": {"blob":"01185d20dc9761b04b9b2f751ec98664fe0eaf93","since":6},
     "test/helpers/agent-sdk-runner.ts": {"blob":"210bba92d241a90df578b2c7fc943ac5755d0025","since":6},
     "test/helpers/auq-substance-panel.ts": {"blob":"4881260ef793668e4963a062db6d06a5e1f7a40f","since":6},