Add extra prompts, endless generation, random character default, and small fixes

- Add extra positive/negative prompt textareas to all 9 detail pages with session persistence
- Add Endless generation button to all detail pages (continuous preview generation until stopped)
- Default character selector to "Random Character" on all secondary detail pages
- Fix queue clear endpoint (remove spurious auth check)
- Refactor app.py into routes/ and services/ modules
- Update CLAUDE.md with new architecture documentation
- Various data file updates and cleanup

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

data/actions/disinterested_sex___bored_female.json

@@ -2,16 +2,16 @@
   "action_id": "disinterested_sex___bored_female",
   "action_name": "Disinterested Sex Bored Female",
   "action": {
-    "full_body": "female lying on back, legs spread, passive body language, completely disengaged from implicit activity",
-    "head": "turned slightly or facing forward but focused on phone, resting on pillow",
-    "eyes": "looking at smartphone, dull gaze, half-closed, unenthusiastic",
-    "arms": "holding smartphone above face with one or both hands, elbows resting on surface",
-    "hands": "holding phone, scrolling on screen",
-    "torso": "lying flat, relaxed, exposed",
-    "pelvis": "hips passive, legs open",
-    "legs": "spread wide, knees bent, relaxed",
-    "feet": "loose, resting on bed",
-    "additional": "holding smartphone, checking phone, indifference, ignoring, nonchalant attitude"
+    "full_body": "1girl,hetero,doggystyle,faceless male, (solo focus:1.2)",
+    "head": "on stomach, resting on pillow",
+    "eyes": "looking at smartphone, bored",
+    "arms": "",
+    "hands": "holding phone",
+    "torso": "",
+    "pelvis": "",
+    "legs": "",
+    "feet": "",
+    "additional": ""
   },
   "participants": {
     "solo_focus": "true",
@@ -25,14 +25,6 @@
     "lora_weight_max": 1.0
   },
   "tags": [
-    "bored",
-    "disinterested",
-    "looking at phone",
-    "smartphone",
-    "lying",
-    "spread legs",
-    "passive",
-    "indifferent",
-    "expressionless"
+    "bored"
   ]
-}
+}