Markdown-wrapper strippaus LLM-vastauksista + hub-status tooltip

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

network-poc/native-node/src/inference.rs

@@ -225,7 +225,7 @@ impl LlmEngine {
         } else { 0.0 };
 
         Ok(GenerateResult {
-            text: generated_text,
+            text: strip_markdown_wrapper(&generated_text),
             tokens_generated,
             duration_ms: gen_time.as_millis() as f64,
             tokens_per_sec,
@@ -233,6 +233,31 @@ impl LlmEngine {
     }
 }
 
+/// Poistaa mallin tuottaman markdown-wrapperin ja johdantotekstin.
+fn strip_markdown_wrapper(text: &str) -> String {
+    let text = text.trim();
+    if let Some(start) = text.find("```") {
+        let after = &text[start + 3..];
+        let code_start = after.find('\n').map(|i| i + 1).unwrap_or(0);
+        let code = &after[code_start..];
+        if let Some(end) = code.find("```") {
+            return code[..end].trim().to_string();
+        }
+        return code.trim().to_string();
+    }
+    let mut result = text.to_string();
+    let lower = result.to_lowercase();
+    for prefix in &["sure!", "here is", "here's", "certainly!", "below is"] {
+        if lower.starts_with(prefix) {
+            if let Some(nl) = result.find('\n') {
+                result = result[nl + 1..].to_string();
+            }
+            break;
+        }
+    }
+    result.trim().to_string()
+}
+
 pub struct GenerateResult {
     pub text: String,
     pub tokens_generated: usize,