Remove PublicAI; Regolo becomes the Apertus provider; emoji = feature tier (🌱 green for greenpt+regolo), qwen-image via image feature only

app/main.py

@@ -1945,11 +1945,12 @@ async def opencollective_webhook(request: Request, token: str):
 # flat picker list clusters by what members care about (privacy / green /
 # openness). The `id` field is left untouched — it remains the canonical key
 # used for actual API calls. Same emoji as the docs (models.md).
+# Emoji marks the FEATURE tier, not the provider: 🌱 = green/renewable-powered
+# (GreenPT and Regolo both), 🔒 = TEE-architected private (Tinfoil).
 MODEL_VALUE_EMOJI = {
     "tinfoil": "🔒",    # architecturally private (TEE)
     "greenpt": "🌱",    # 100% renewable energy
-    "publicai": "📖",   # publicly developed, sovereign open models
-    "regolo": "⚡",     # EU-hosted, zero data retention, renewable-powered
+    "regolo": "🌱",     # EU-hosted, zero data retention, 100% renewables
 }
 MODEL_FRIENDLY_NAMES = {
     "greenpt/deepseek-v4.1-flash": "DeepSeek V4.1",
@@ -1958,11 +1959,8 @@ MODEL_FRIENDLY_NAMES = {
     "greenpt/glm-5.3-flash": "GLM-5.3 Flash",
     "greenpt/glm-5.3": "GLM-5.3",
     "tinfoil/gpt-oss-120b": "GPT-OSS 120B",
-    "publicai/apertus-v1.5-8b": "Apertus 8B",
-    "publicai/apertus-v1.5-70b": "Apertus 70B",
-    "regolo/apertus-70b": "Apertus 70B (Regolo)",
+    "regolo/apertus-70b": "Apertus 70B",
     "regolo/qwen3.5-122b": "Qwen 3.5 122B",
-    "regolo/qwen-image": "Qwen Image",
 }