feat: NIP-17 private DMs + nostrdb submodule conversion

.gitignore

@@ -1,5 +1,6 @@
 xcuserdata
 /.direnv
+.beads/
 damus/TestingPrivate.swift
 damus.xcodeproj/xcshareddata/xcbaselines
 .DS_Store

.gitmodules

@@ -0,0 +1,4 @@
+[submodule "nostrdb"]
+	path = nostrdb
+	url = https://github.com/alltheseas/nostrdb.git
+	branch = spm

nostrdb/parser.h → damus-c/parser.h

@@ -1,4 +1,3 @@
-
 #ifndef CURSOR_PARSER
 #define CURSOR_PARSER
 
@@ -39,4 +38,3 @@ static inline int consume_u32(struct cursor *cursor, unsigned int match)
 }
 
 #endif /* CURSOR_PARSER */
-

damus/ContentView.swift

@@ -695,6 +695,9 @@ struct ContentView: View {
     }
 
     func connect() async {
+        // Check for and swap in a compacted database before opening
+        let _ = Ndb.try_swap_compacted_db()
+
         // nostrdb
         var mndb = Ndb()
         if mndb == nil {
@@ -747,7 +750,8 @@ struct ContentView: View {
         )
 
         home.damus_state = self.damus_state!
-
+        self.damus_state?.initializeNip17KeysIfNeeded()
+
         await damus_state.snapshotManager.startPeriodicSnapshots()
 
         if let damus_state, damus_state.purple.enable_purple {
@@ -778,6 +782,8 @@ struct ContentView: View {
             }
         }
         await damus_state.nostrNetwork.connect()
+        // Subscribe to our own DM relays (kind:10050) for receiving inbound NIP-17 messages
+        self.damus_state?.subscribeToOwnDMRelays()
         // TODO: Move this to a better spot. Not sure what is the best signal to listen to for sending initial filters
         DispatchQueue.main.asyncAfter(deadline: .now() + 0.25, execute: {
             self.home.send_initial_filters()