✨ Identity onboarding + Verbatim dialogue memory

- Added [identity] config section (agent_name, agent_role, user_name,
  user_role, setup_complete) to GyandootConfig and AgentConfig
- Agent loop now injects identity into system prompt on startup
- Agent loop injects past verbatim dialogue memory into system prompt
- Added dialogue_append() / dialogue_read() to MemPalace
  - Word-by-word, line-by-line verbatim record in dialogue.md
  - No compression, no truncation — every message preserved
- Agent loop writes to BOTH daily transcript AND verbatim dialogue
  on every turn
- All config paths pass identity through (flat converter, subagents)

crates/gyandoot-memory/src/palace.rs

@@ -388,7 +388,55 @@ impl MemPalace {
         Ok(())
     }
 
-    // ── Getters ─────────────────────────────────────────────────────────
+    // ── Dialogue / verbatim memory ─────────────────────────────────────
+
+    /// Append a single message to the verbatim dialogue log.
+    ///
+    /// This is a line-by-line, word-by-word record of every message,
+    /// stored in `dialogue.md` within the wing directory. Each entry
+    /// is timestamped and tagged with role — no compression, no truncation.
+    pub async fn dialogue_append(&self, role: &str, content: &str) -> PalaceResult<()> {
+        let path = self.base_dir.join("dialogue.md");
+        let timestamp = Utc::now().format("%Y-%m-%d %H:%M:%S%.3f").to_string();
+
+        use std::io::Write;
+        let mut file = std::fs::OpenOptions::new()
+            .create(true)
+            .append(true)
+            .open(&path)?;
+
+        // Write a header line for this exchange
+        let header = format!("\n## [{timestamp}] **{role}**\n");
+        file.write_all(header.as_bytes())?;
+
+        // Write every single line of content verbatim
+        for line in content.lines() {
+            writeln!(file, "{}", line)?;
+        }
+        file.flush()?;
+
+        debug!(
+            "Dialogue appended {role} message ({len}B) to dialogue.md",
+            len = content.len()
+        );
+        Ok(())
+    }
+
+    /// Read the full dialogue log, up to max_chars (for context injection).
+    pub async fn dialogue_read(&self, max_chars: usize) -> PalaceResult<String> {
+        let path = self.base_dir.join("dialogue.md");
+        if !path.exists() {
+            return Ok(String::new());
+        }
+        let content = std::fs::read_to_string(&path)?;
+        if content.len() <= max_chars {
+            Ok(content)
+        } else {
+            // Take the last max_chars chars (recent history)
+            let start = content.len().saturating_sub(max_chars);
+            Ok(content[start..].to_string())
+        }
+    }
 
     /// Get a reference to the in-memory transcript store.
     pub fn transcript_store(&self) -> &TranscriptStore {