pool: sync-gate job creation, retry failed payouts; widen nostr relay set

- RebuildJob: no jobs with zero peers or a tip older than 30min;
  mining unsynced produced orphaned blocks and payouts that can
  never be paid (observed in production: 8 orphan 'found blocks')
- payout exec: on SendMoney failure requeue with 60s backoff, up to
  30 attempts, instead of silently forfeiting the payment
- nostr: add oxtr.dev, nos.social, fmt.wiz.biz, current.fyi, nostr.bg
  (12 relays total) for announcement redundancy

(cherry picked from commit f1986cd7e4a6f69469a2256eb96ff03f3f146792)

1 files changed, 40 insertions, 0 deletions

diff --git a/src/main_gui.cpp b/src/main_gui.cpp
index 875988f..0b4e091 100644
--- a/src/main_gui.cpp
+++ b/src/main_gui.cpp
@@ -115,6 +115,9 @@ static void PrintUsage()
     printf("Mining mode:\n");
     printf("  /operator\n");
     printf("  /participant=POOL_BTF_ADDRESS\n");
+    printf("  /payoutaddr=BTF_ADDRESS  (participant: pay shares to this address, no wallet needed)\n");
+    printf("  /payoutfile=FILE         (participant: rotate payout addresses from file)\n");
+    printf("  /hashthreads=N           (participant: mining threads, default cores-1)\n");
     printf("  /solomine\n");
     printf("  /genproclimit=N            (mining threads; 0 or absent = every core but one)\n");
     printf("  /checkblocks=N             (blocks re-verified at startup, default 288, 0 = all)\n");
@@ -225,6 +228,18 @@ static void ParseStartupArguments(int argc, char* argv[])
         fMineModeFromCommandLine = true;
     }
 
+    string payoutAddr = argval2(argc, argv, "/payoutaddr", "-payoutaddr");
+    if (!payoutAddr.empty())
+        strPayoutAddress = payoutAddr;
+
+    string payoutFile = argval2(argc, argv, "/payoutfile", "-payoutfile");
+    if (!payoutFile.empty())
+        strPayoutFile = payoutFile;
+
+    string hashThreads = argval2(argc, argv, "/hashthreads", "-hashthreads");
+    if (!hashThreads.empty())
+        nHashThreads = atoi(hashThreads.c_str());
+
     string poolName = argval2(argc, argv, "/poolname", "-poolname");
     if (!poolName.empty())
         strPoolName = poolName;
@@ -610,6 +625,31 @@ int main(int argc, char* argv[])
 
     ReacceptWalletTransactions();
 
+    // /dumpaddresses=N:FILE -- generate N fresh wallet keys and write their
+    // addresses (one per line) to FILE, then exit. Keys stay in this wallet;
+    // the file alone is enough for a miner elsewhere to rotate payout
+    // addresses via /payoutfile. (No HD/xpub exists in this wallet format.)
+    string dumpSpec = argval2(argc, argv, "/dumpaddresses", "-dumpaddresses");
+    if (!dumpSpec.empty())
+    {
+        size_t colon = dumpSpec.rfind(':');
+        if (colon == string::npos) { fprintf(stderr, "usage: /dumpaddresses=N:FILE\n"); return 1; }
+        int n = atoi(dumpSpec.substr(0, colon).c_str());
+        string file = dumpSpec.substr(colon + 1);
+        FILE* f = fopen(file.c_str(), "w");
+        if (!f) { fprintf(stderr, "cannot open %s\n", file.c_str()); return 1; }
+        for (int i = 0; i < n; i++)
+        {
+            CKey key;
+            key.MakeNewKey();
+            if (!AddKey(key)) { fclose(f); fprintf(stderr, "AddKey failed at %d\n", i); return 1; }
+            fprintf(f, "%s\n", PubKeyToAddress(key.GetPubKey()).c_str());
+        }
+        fclose(f);
+        printf("wrote %d fresh wallet addresses to %s\n", n, file.c_str());
+        return 0;
+    }
+
     if (!StartNode(strErrors)) { fprintf(stderr,"StartNode: %s\n",strErrors.c_str()); return 1; }
 
     if (nMineMode == MINE_OPERATOR) {