feat: add listed field to note for public listing visibility

Notes with listed=false are filtered out from all GET /notes queries.
The field defaults to true so existing and new notes without it remain visible.
Migration handles existing databases with ALTER TABLE ADD COLUMN.

src/data/db.ts

@@ -22,10 +22,10 @@ type NoteRow = {
 export const getNotes = (cursor?: string, limit = 20) => {
   const notes = cursor
     ? db.prepare(
-      "SELECT did, rkey, title, publishedAt, createdAt FROM note WHERE rkey < ? ORDER BY rkey DESC LIMIT ?",
+      "SELECT did, rkey, title, publishedAt, createdAt FROM note WHERE listed = 1 AND rkey < ? ORDER BY rkey DESC LIMIT ?",
     ).all<NoteRow>(cursor, limit)
     : db.prepare(
-      "SELECT did, rkey, title, publishedAt, createdAt FROM note ORDER BY rkey DESC LIMIT ?",
+      "SELECT did, rkey, title, publishedAt, createdAt FROM note WHERE listed = 1 ORDER BY rkey DESC LIMIT ?",
     ).all<NoteRow>(limit);
 
   return {
@@ -37,10 +37,10 @@ export const getNotes = (cursor?: string, limit = 20) => {
 export const getNotesByDid = (did: string, cursor?: string, limit = 20) => {
   const notes = cursor
     ? db.prepare(
-      "SELECT did, rkey, title, publishedAt, createdAt FROM note WHERE did = ? AND rkey < ? ORDER BY rkey DESC LIMIT ?",
+      "SELECT did, rkey, title, publishedAt, createdAt FROM note WHERE listed = 1 AND did = ? AND rkey < ? ORDER BY rkey DESC LIMIT ?",
     ).all<NoteRow>(did, cursor, limit)
     : db.prepare(
-      "SELECT did, rkey, title, publishedAt, createdAt FROM note WHERE did = ? ORDER BY rkey DESC LIMIT ?",
+      "SELECT did, rkey, title, publishedAt, createdAt FROM note WHERE listed = 1 AND did = ? ORDER BY rkey DESC LIMIT ?",
     ).all<NoteRow>(did, limit);
 
   return {
@@ -107,18 +107,21 @@ export const upsertNote = (note: Note) => {
       publishedAt,
       createdAt,
       did,
-      rkey
+      rkey,
+      listed
     )
-    VALUES (?, ?, ?, ?, ?)
+    VALUES (?, ?, ?, ?, ?, ?)
     ON CONFLICT(did, rkey)
     DO UPDATE SET
       title = excluded.title,
-      publishedAt = excluded.publishedAt
+      publishedAt = excluded.publishedAt,
+      listed = excluded.listed
     `,
     note.title,
     note.publishedAt ? new Date(note.publishedAt).toISOString() : now,
     note.createdAt ? new Date(note.createdAt).toISOString() : now,
     note.did,
     note.rkey,
+    note.listed !== false ? 1 : 0,
   );
 };

src/data/note.ts

@@ -4,4 +4,5 @@ export type Note = {
   title: string;
   publishedAt: string;
   createdAt: string;
+  listed?: boolean;
 };

src/migrations/init.ts

@@ -7,10 +7,19 @@ db.exec(`
     createdAt DATETIME NOT NULL,
     did TEXT NOT NULL,
     rkey TEXT NOT NULL,
+    listed INTEGER NOT NULL DEFAULT 1,
     PRIMARY KEY (did, rkey)
   );
 `);
 
+try {
+  db.exec(
+    `ALTER TABLE note ADD COLUMN listed INTEGER NOT NULL DEFAULT 1;`,
+  );
+} catch {
+  // Column already exists — no-op
+}
+
 db.exec(`
   CREATE TABLE IF NOT EXISTS state (
     key TEXT PRIMARY KEY,