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.

server-rs/crates/api-server/src/modules/jump_hop.rs

@@ -0,0 +1,76 @@
+use axum::{
+    Router, middleware,
+    routing::{get, post},
+};
+
+use crate::{
+    auth::require_bearer_auth,
+    jump_hop::{
+        create_jump_hop_session, execute_jump_hop_action, get_jump_hop_gallery_detail,
+        get_jump_hop_runtime_work, get_jump_hop_session, jump_hop_run_jump, list_jump_hop_gallery,
+        publish_jump_hop_work, restart_jump_hop_run, start_jump_hop_run,
+    },
+    state::AppState,
+};
+
+pub fn router(state: AppState) -> Router<AppState> {
+    Router::new()
+        .route(
+            "/api/creation/jump-hop/sessions",
+            post(create_jump_hop_session).route_layer(middleware::from_fn_with_state(
+                state.clone(),
+                require_bearer_auth,
+            )),
+        )
+        .route(
+            "/api/creation/jump-hop/sessions/{session_id}",
+            get(get_jump_hop_session).route_layer(middleware::from_fn_with_state(
+                state.clone(),
+                require_bearer_auth,
+            )),
+        )
+        .route(
+            "/api/creation/jump-hop/sessions/{session_id}/actions",
+            post(execute_jump_hop_action).route_layer(middleware::from_fn_with_state(
+                state.clone(),
+                require_bearer_auth,
+            )),
+        )
+        .route(
+            "/api/creation/jump-hop/works/{profile_id}/publish",
+            post(publish_jump_hop_work).route_layer(middleware::from_fn_with_state(
+                state.clone(),
+                require_bearer_auth,
+            )),
+        )
+        .route(
+            "/api/runtime/jump-hop/works/{profile_id}",
+            get(get_jump_hop_runtime_work),
+        )
+        .route(
+            "/api/runtime/jump-hop/runs",
+            post(start_jump_hop_run).route_layer(middleware::from_fn_with_state(
+                state.clone(),
+                require_bearer_auth,
+            )),
+        )
+        .route(
+            "/api/runtime/jump-hop/runs/{run_id}/jump",
+            post(jump_hop_run_jump).route_layer(middleware::from_fn_with_state(
+                state.clone(),
+                require_bearer_auth,
+            )),
+        )
+        .route(
+            "/api/runtime/jump-hop/runs/{run_id}/restart",
+            post(restart_jump_hop_run).route_layer(middleware::from_fn_with_state(
+                state.clone(),
+                require_bearer_auth,
+            )),
+        )
+        .route("/api/runtime/jump-hop/gallery", get(list_jump_hop_gallery))
+        .route(
+            "/api/runtime/jump-hop/gallery/{public_work_code}",
+            get(get_jump_hop_gallery_detail),
+        )
+}