fix: correct dialogue round numbering and kebab-case spike filenames

- Fix "Round 0" → "Round 1" for opening arguments in alignment dialogues
- Convert spike titles to kebab-case for consistent filenames

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

crates/blue-mcp/src/handlers/dialogue.rs

@@ -886,7 +886,7 @@ pub fn generate_alignment_dialogue_markdown(
     md.push_str("| — | [Awaiting Round 1] | — | — | — |\n\n");
 
     // Opening Arguments placeholder
-    md.push_str("## Round 0: Opening Arguments\n\n");
+    md.push_str("## Round 1: Opening Arguments\n\n");
     for agent in agents {
         md.push_str(&format!("### {} {}\n\n", agent.name, agent.emoji));
         md.push_str("[Awaiting response]\n\n");
@@ -1128,7 +1128,7 @@ mod tests {
         assert!(md.contains("## Alignment Scoreboard"));
         assert!(md.contains("## Perspectives Inventory"));
         assert!(md.contains("## Tensions Tracker"));
-        assert!(md.contains("## Round 0: Opening Arguments"));
+        assert!(md.contains("## Round 1: Opening Arguments"));
 
         // Agent names present
         assert!(md.contains("Muffin"));

crates/blue-mcp/src/handlers/spike.rs

@@ -31,7 +31,7 @@ pub fn handle_create(state: &ProjectState, args: &Value) -> Result<Value, Server
 
     // Generate filename with date
     let date = chrono::Utc::now().format("%Y-%m-%d").to_string();
-    let filename = format!("spikes/{}-{}.md", date, title);
+    let filename = format!("spikes/{}-{}.md", date, to_kebab_case(title));
 
     // Generate markdown
     let markdown = spike.to_markdown();
@@ -143,3 +143,15 @@ pub fn handle_complete(state: &ProjectState, args: &Value) -> Result<Value, Serv
         )
     }))
 }
+
+/// Convert a string to kebab-case for filenames
+fn to_kebab_case(s: &str) -> String {
+    s.to_lowercase()
+        .chars()
+        .map(|c| if c.is_alphanumeric() { c } else { '-' })
+        .collect::<String>()
+        .split('-')
+        .filter(|s| !s.is_empty())
+        .collect::<Vec<_>>()
+        .join("-")
+}