fix(ap): visibility-aware addressing — correct to/cc outbound, parse inbound to/cc

crates/adapters/activitypub/src/handler.rs

@@ -111,6 +111,24 @@ impl ApObjectHandler for ThoughtsObjectHandler {
             .intern_remote_actor(actor_url)
             .await
             .map_err(|e| anyhow!("{e}"))?;
+
+        // Derive visibility from AP addressing conventions.
+        let as_public = "https://www.w3.org/ns/activitystreams#Public";
+        let in_to = note.to.iter().any(|s| s == as_public);
+        let in_cc = note.cc.iter().any(|s| s == as_public);
+        let has_followers = note.to.iter().any(|s| s.ends_with("/followers"))
+            || note.cc.iter().any(|s| s.ends_with("/followers"));
+
+        let visibility = if in_to {
+            "public"
+        } else if in_cc {
+            "unlisted"
+        } else if has_followers {
+            "followers"
+        } else {
+            "direct"
+        };
+
         self.repo
             .accept_note(
                 ap_id,
@@ -119,6 +137,7 @@ impl ApObjectHandler for ThoughtsObjectHandler {
                 note.published,
                 note.sensitive,
                 note.summary,
+                visibility,
             )
             .await
             .map_err(|e| anyhow!("{e}"))