Extract fallback role graph wording

docs/prompt-architecture-improvement-plan.md

@@ -102,6 +102,9 @@ Already isolated:
 - hardcore configured-cast role graph generation lives in
   `hardcore_role_graphs.py`; `prompt_builder.py` selects item/axis metadata and
   then asks that module for the source role graph.
+- fallback role graph wording lives in `hardcore_role_fallback.py`, covering
+  solo rows, women-only rows, men-only rows, mixed group fallbacks, and support
+  partner sentences.
 - interaction-style role graph wording lives in `hardcore_role_interaction.py`,
   covering foreplay, manual stimulation, body worship, clothing transitions,
   dominant guidance, camera performance, aftercare, and group coordination.
@@ -323,6 +326,8 @@ Near-term:
   so source aftermath placement and formatter details cannot drift apart.
 - Cover generated interaction routes through Krea, SDXL, and natural caption
   outputs so source contact/guidance/presentation wording stays metadata-driven.
+- Cover generated fallback role routes through Krea, SDXL, and natural caption
+  outputs so solo and same-sex paths do not remain untested edge behavior.
 
 Medium-term:
 

docs/prompt-pool-routing-map.md

@@ -65,6 +65,7 @@ Core helper ownership:
 | Python module | What it owns |
 | --- | --- |
 | `hardcore_role_graphs.py` | Source role graph construction for hardcore configured-cast rows, including POV-aware interaction geometry. |
+| `hardcore_role_fallback.py` | Solo, same-sex, mixed group fallback, and support-partner role graph wording for configured casts. |
 | `hardcore_role_interaction.py` | Foreplay, manual stimulation, body worship, clothing transition, dominant guidance, camera performance, aftercare, and group coordination role graph wording. |
 | `hardcore_role_oral.py` | Oral-sex role graph wording for kneeling, face-sitting, sixty-nine, edge-supported, side-lying, chair, standing, and reclining oral geometry. |
 | `hardcore_role_outercourse.py` | Outercourse role graph wording for boobjob, testicle-sucking, penis-licking, handjob, and footjob geometry. |
@@ -756,6 +757,8 @@ pair metadata through the core Python APIs, then verifies:
 - interaction routes keep source role graphs, Krea prose, SDXL tags, and
   training captions synchronized for manual, clothing transition, body worship,
   camera-performance, aftercare, and group-coordination rows;
+- fallback role routes keep solo, women-only, men-only, and mixed-threesome
+  source role graphs synchronized with Krea, SDXL, and training-caption outputs;
 - expression-disabled rows do not fall back to generated expression text.
 - static formatter metadata fixtures keep source-provided action families
   stable across Krea2 prose, SDXL tags, and natural captions even when raw item