feat(buzz-cli, buzz-sdk): add buzz projects command group (NIP-MP kind:30621 write path)

crates/buzz-cli/src/commands/mod.rs

@@ -12,9 +12,37 @@ pub mod notes;
 pub mod pack;
 pub mod patches;
 pub mod pr;
+pub mod projects;
 pub mod reactions;
 pub mod repos;
 pub mod social;
 pub mod upload;
 pub mod users;
 pub mod workflows;
+
+use crate::{client::normalize_write_response, error::CliError};
+
+/// Parse a relay write-response JSON blob, mapping a duplicate (dominated)
+/// write to [`CliError::Conflict`] with the caller-supplied message.
+///
+/// Used by every command that publishes an NIP-33 addressable event and
+/// needs to tell accepted from duplicate/dominated.
+pub fn parse_write_response(raw: &str, conflict_msg: &str) -> Result<String, CliError> {
+    let response: serde_json::Value = serde_json::from_str(raw)
+        .map_err(|e| CliError::Other(format!("relay response is not JSON: {e} ({raw})")))?;
+    let accepted = response
+        .get("accepted")
+        .and_then(serde_json::Value::as_bool)
+        .unwrap_or(false);
+    let message = response
+        .get("message")
+        .and_then(serde_json::Value::as_str)
+        .unwrap_or("");
+    if !accepted {
+        return Err(CliError::Other(format!("relay rejected event: {message}")));
+    }
+    if message == "duplicate" || message.starts_with("duplicate:") {
+        return Err(CliError::Conflict(conflict_msg.to_string()));
+    }
+    Ok(normalize_write_response(raw))
+}