Extract seed resolution nodes

docs/prompt-architecture-improvement-plan.md

@@ -7,7 +7,8 @@ routing map in `docs/prompt-pool-routing-map.md`.
 
 The current branch adds two major surfaces:
 
-- `SxCP Krea2 Resolution Selector` in `__init__.py`, with README notes.
+- `SxCP Krea2 Resolution Selector` in `node_seed_resolution.py`, with README
+  notes.
 - Expanded hardcore interaction/manual/action pools in
   `categories/sexual_poses.json`,
   `categories/expression_composition_pools.json`, `prompt_builder.py`, and
@@ -271,7 +272,7 @@ Improve later:
 
 ### Node / UI Path
 
-Owner: `__init__.py`, `loop_nodes.py`, `web/*.js`.
+Owner: `__init__.py`, `node_seed_resolution.py`, `loop_nodes.py`, `web/*.js`.
 
 Keep here:
 
@@ -279,10 +280,16 @@ Keep here:
 - widget behavior;
 - button actions;
 - dynamic input slots.
+- seed and resolution utility node declarations in `node_seed_resolution.py`.
+
+Already isolated:
+
+- seed/global-seed/seed-locker and SDXL/Krea2 resolution utility nodes live in
+  `node_seed_resolution.py`, with registration maps imported by `__init__.py`.
 
 Improve later:
 
-- split large node classes into files by family;
+- split remaining large node classes into files by family;
 - keep node display names, return names, and docs in sync through the audit
   helper;
 - add small endpoint tests for profile/accumulator/index-switch routes.
@@ -400,8 +407,8 @@ Medium-term:
 
 ## Recommended Next Passes
 
-1. Split `__init__.py` node classes by family after behavior is covered by smoke
-   checks.
+1. Continue splitting remaining `__init__.py` node classes by family after
+   behavior is covered by smoke checks.
 2. Continue splitting the internals of `hardcore_role_graphs.py` by action
    family once generated edge cases are covered by smoke fixtures.
 3. Add more route-level smoke fixtures for generated edge cases that are not

docs/prompt-pool-routing-map.md

@@ -24,8 +24,8 @@ When a result is wrong, first identify which layer owns the bad text:
 - Raw builder prompt acceptable, Krea2 output wrong: edit `krea_formatter.py`.
 - Raw builder prompt acceptable, SDXL tags wrong: edit `sdxl_formatter.py`.
 - Natural caption/training caption wrong: edit `caption_naturalizer.py`.
-- UI/preview/loop behavior wrong: edit `__init__.py`, `loop_nodes.py`, or
-  `web/*.js`.
+- UI/preview/loop behavior wrong: edit `__init__.py`, node family modules such
+  as `node_seed_resolution.py`, `loop_nodes.py`, or `web/*.js`.
 
 ## High-Level Routes
 
@@ -691,8 +691,7 @@ These do not own prompt pool wording, but they affect execution and review:
 | Index switch | `loop_nodes.py`, `web/index_switch_slots.js` | Multi-input to selected output, and selected input to multi-output routing. |
 | Accumulator | `loop_nodes.py`, `web/accumulator_preview.js` | Stores generated values/images during workflow execution and previews/reorders/deletes them. |
 | Persistent text preview | `loop_nodes.py`, `web/preview_any_text.js` | Stores any value as text and keeps it after workflow reload. |
-| SDXL bucket size | `SxCPSDXLBucketSize` in `__init__.py` | Random/fixed SDXL bucket width and height selection. |
-| Krea2 resolution selector | `SxCPKrea2ResolutionSelector` in `__init__.py` | Krea-compatible width/height and API aspect/resolution helper. |
+| Seed and resolution utility nodes | `node_seed_resolution.py`, imported by `__init__.py` | Global/per-axis seed configs plus SDXL/Krea width/height helpers. |
 
 ## Drift Audit Helper