Enforce Genarrative play-type SOP and update docs

Rewrite Genarrative play-type integration guidance across .codex and .hermes to define a platform-level SOP: default to form/image workbench, unify single-image asset slots (CreativeImageInputPanel), standardize series-material sheet->cut->transparent->OSS pipeline, and forbid copying legacy chat/agent workflows as the default. Add decision-log entry freezing the SOP and a pitfalls note warning against direct reuse of old play tools. Update CONTEXT.md and docs/README.md, add a new PRD file, and apply related small server-side changes (module-auth, spacetime-client mappers and runtime) to align back-end code with the new contracts and flows.

src/services/publicWorkCode.ts

@@ -53,6 +53,14 @@ export function buildBabyObjectMatchPublicWorkCode(profileId: string) {
   return `BO-${suffix}`;
 }
 
+export function buildJumpHopPublicWorkCode(profileId: string) {
+  const normalized = normalizePublicCodeText(profileId);
+  const fallback = normalized || '00000000';
+  const suffix = fallback.slice(-8).padStart(8, '0');
+
+  return `JH-${suffix}`;
+}
+
 export function isSamePuzzlePublicWorkCode(keyword: string, profileId: string) {
   const normalizedKeyword = normalizePublicCodeText(keyword);
 
@@ -124,3 +132,13 @@ export function isSameBabyObjectMatchPublicWorkCode(
     normalizedKeyword === normalizePublicCodeText(profileId)
   );
 }
+
+export function isSameJumpHopPublicWorkCode(keyword: string, profileId: string) {
+  const normalizedKeyword = normalizePublicCodeText(keyword);
+
+  return (
+    normalizedKeyword ===
+      normalizePublicCodeText(buildJumpHopPublicWorkCode(profileId)) ||
+    normalizedKeyword === normalizePublicCodeText(profileId)
+  );
+}