Extract server route payload handlers

docs/prompt-pool-routing-map.md

@@ -98,6 +98,7 @@ Core helper ownership:
 | `prompt_hygiene.py` | Generic prompt, caption, and negative-prompt cleanup. |
 | `row_normalization.py` | Final prompt-row and pair metadata normalization: trigger prepending, extra-positive append, negative merge/dedupe, caption-part joining, embedded soft/hard row output and side-metadata synchronization, and embedded row sanitation. |
 | `formatter_input.py` | Shared formatter input parsing: text cleanup, metadata/source JSON detection, trigger-prefix stripping, shared prompt field-label inventory, fallback field-label stripping, `Avoid:` splitting, prompt-field extraction, and metadata row-value fallback. |
+| `server_routes.py` | Pure payload handlers for profile-save and accumulator server endpoints, used by ComfyUI routes and smoke tests without importing ComfyUI. |
 | `sdxl_presets.py` | SDXL formatter profiles, style presets, quality presets, default negative prompt, and metadata-family tag hints used by the SDXL formatter and node choice lists. |
 | `caption_policy.py` | Caption naturalizer policy data and helpers: caption profiles, style tails, item labels, metadata-family caption labels, detail/style-policy normalization, clothing cleanup, and composition cleanup. |
 
@@ -813,6 +814,9 @@ pair metadata through the core Python APIs, then verifies:
 - static formatter metadata fixtures keep source-provided action families
   stable across Krea2 prose, SDXL tags, and natural captions even when raw item
   text contains distracting wording.
+- profile-save and accumulator endpoint payload handlers are smoke-tested
+  without importing ComfyUI, and the reversible index switch keeps pick/input
+  and route/output behavior stable.
 
 ## Editing Cheatsheet