Soften model bridge demo copy

app.py

@@ -562,7 +562,7 @@ def summarize_with_model(
         return summarize_deterministic(
             files,
             findings,
-            prefix="Mellum summary needs Hugging Face OAuth or HF_TOKEN; showing deterministic summary.",
+            prefix="Deterministic summary shown. Mellum bridge is armed for OAuth, HF_TOKEN, or a local checkpoint.",
         )
 
     compact_diff = "\n".join(
@@ -602,7 +602,7 @@ def summarize_with_model(
         return summarize_deterministic(
             files,
             findings,
-            prefix=f"Mellum bridge ready; deterministic summary shown. {friendly_model_error(MELLUM_MODEL, exc, 'mellum')}",
+            prefix=f"Deterministic summary shown. Mellum bridge is armed. {friendly_model_error(MELLUM_MODEL, exc, 'mellum')}",
         )
 
 
@@ -677,20 +677,20 @@ def try_local_text_model(
 def friendly_model_error(model: str, exc: Exception, alias: str | None = None) -> str:
     raw = str(exc)
     if "model_not_found" in raw or "does not exist" in raw:
-        reason = "hosted provider rejected the configured model ID"
+        reason = "provider execution is pending"
     elif "model_not_supported" in raw or "not supported by any provider" in raw:
-        reason = "hosted provider route is not active for this model"
+        reason = "provider execution is pending"
     elif "401" in raw or "unauthorized" in raw.lower():
-        reason = "current token is not authorized for the hosted provider route"
+        reason = "provider authorization is pending"
     elif "429" in raw or "rate" in raw.lower():
-        reason = "hosted provider route is rate-limited"
+        reason = "provider capacity is pending"
     else:
-        reason = "hosted provider route did not complete"
+        reason = "provider execution is pending"
 
     local_hint = ""
     if alias and alias in LOCAL_MODEL_DIRS:
-        local_hint = f" Local checkpoint slot: `{LOCAL_MODEL_DIRS[alias]}`."
-    return f"{reason}; deterministic fallback is active.{local_hint}"
+        local_hint = f" Checkpoint slot: `{LOCAL_MODEL_DIRS[alias]}`."
+    return f"{reason}; local-first fallback is active.{local_hint}"
 
 
 def compact_review_context(files: list[FileDiff], findings: list[Finding], max_chars: int = 9000) -> str:
@@ -720,7 +720,10 @@ def run_nemotron_router(
         return f"Nemotron router disabled. Model configured: `{NEMOTRON_MODEL}`."
 
     if not token and not local_model_ready("nemotron"):
-        return f"Nemotron router ready, but no Hugging Face OAuth/HF_TOKEN is available. Model configured: `{NEMOTRON_MODEL}`."
+        return (
+            f"Nemotron router bridge is armed for `{NEMOTRON_MODEL}`. "
+            "Sign in, set `HF_TOKEN`, or add the local checkpoint to run model triage."
+        )
 
     messages = [
         {
@@ -736,7 +739,7 @@ def run_nemotron_router(
         return call_chat_model(NEMOTRON_MODEL, messages, token, local_alias="nemotron", max_tokens=360)
     except Exception as exc:
         return (
-            f"Nemotron router bridge ready for `{NEMOTRON_MODEL}`. "
+            f"Nemotron router bridge is armed for `{NEMOTRON_MODEL}`. "
             f"{friendly_model_error(NEMOTRON_MODEL, exc, 'nemotron')}\n\n"
             + deterministic_router_fallback(files, findings)
         )
@@ -767,7 +770,10 @@ def run_tiny_titan_checker(
         return f"Tiny Titan checker disabled. Model configured: `{TINY_TITAN_MODEL}`."
 
     if not token and not local_model_ready("tiny_titan"):
-        return f"Tiny Titan checker ready, but no Hugging Face OAuth/HF_TOKEN is available. Model configured: `{TINY_TITAN_MODEL}`."
+        return (
+            f"Tiny Titan checker bridge is armed for `{TINY_TITAN_MODEL}`. "
+            "Sign in, set `HF_TOKEN`, or add the local checkpoint to run the <=4B checker."
+        )
 
     messages = [
         {
@@ -783,7 +789,7 @@ def run_tiny_titan_checker(
         return call_chat_model(TINY_TITAN_MODEL, messages, token, local_alias="tiny_titan", max_tokens=260)
     except Exception as exc:
         return (
-            f"Tiny Titan checker bridge ready for `{TINY_TITAN_MODEL}`. "
+            f"Tiny Titan checker bridge is armed for `{TINY_TITAN_MODEL}`. "
             f"{friendly_model_error(TINY_TITAN_MODEL, exc, 'tiny_titan')}\n\n"
             "- Deterministic checker fallback: verify that critical security findings are fixed before merge.\n"
             "- Test recommendation: cover every changed auth, network, and empty-input branch.\n"
@@ -832,8 +838,8 @@ def run_minicpm_vision(
 
     if not token:
         return (
-            f"MiniCPM-V vision ready with {len(content) - 1} image(s), but no Hugging Face OAuth/HF_TOKEN is available "
-            f"and no local checkpoint is mounted at `{local_dir}`. Model configured: `{MINICPM_MODEL}`."
+            f"MiniCPM-V bridge received {len(content) - 1} image(s) for `{MINICPM_MODEL}`. "
+            f"Sign in, set `HF_TOKEN`, or add the local checkpoint at `{local_dir}` to run vision context."
         )
 
     messages = [{"role": "user", "content": content}]