hygiene: Phase 5 — correct stale comments + name safe magic numbers

Fifth phase of the code-hygiene remediation, done per-file (18 files) via an
18-agent Workflow with strict guardrails. No consensus or security VALUES
changed (verified: pow/hush_utils/hush_bitcoind/net.h/crypter/stratum have
zero non-comment numeric changes); built clean, self-mined, verifychain=true.

Totals: 57 stale comments corrected, 46 user-facing branding fixes, 6
behavior-preserving named constants, 4 stratum warnings, 77 items deliberately
left (consensus/security values, copyright headers).

- Stale comments -> DragonX: corrected HUSH3/HUSH/Komodo/Equihash/Arrakis
  leftovers that misdescribed the active chain (pow AWT/lwma notes, txdb
  "Equihash solution" -> RandomX, wallet CLTV/overwinter/Sapling@1 notes,
  util datadir provenance, crypter's stale mapSproutSpendingKeys invariant).
  Replaced unprofessional/editorializing comments (profane TODOs, "developers
  are elite") with neutral technical notes, preserving the real design info.
- User-facing branding: dumpwallet header "created by Hush" -> "DragonX";
  RPC help text hushd/hush-cli/hushprivkey/hushaddress/Agama -> dragonx*;
  rebranded provably-dead "HUSH3" symbol-fallback literals to DRAGONX.
- Named constants (same values, non-consensus/non-security): addrman
  peer-selection factors (kChanceFactorGrowth/kChanceScale/deprioritize),
  sietch MIN_ZOUTS, an init notarization-DB cache size.
- Left the security macros (ECC/TFM_TIMING_RESISTANT=420, comment-clarified
  only), the consensus subsidy/commission literals + 128/129 TRANSITION
  (comment only), and copyright headers untouched.
- Added a prominent WARNING that the stratum server is Equihash-era and NOT
  updated for DragonX's RandomX PoW (flagged, not rewritten).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

src/wallet/asyncrpcoperation_saplingconsolidation.cpp

@@ -20,6 +20,12 @@
 CAmount fConsolidationTxFee = DEFAULT_CONSOLIDATION_FEE;
 bool fConsolidationMapUsed = false;
 
+// Number of Sietch dummy ("zdust") shielded outputs added to every consolidation
+// transaction to obscure the real output and keep the anonymity set large. This is
+// a wallet privacy-tuning parameter (not a consensus rule); the sweep operation uses
+// the same value under the name ZOUTS.
+static const int MIN_ZOUTS = 7;
+
 extern string randomSietchZaddr();
 
 AsyncRPCOperation_saplingconsolidation::AsyncRPCOperation_saplingconsolidation(int targetHeight) : targetHeight_(targetHeight) {}
@@ -238,10 +244,10 @@ bool AsyncRPCOperation_saplingconsolidation::main_impl() {
             builder.AddSaplingOutput(extsk.expsk.ovk, addr, actualAmountToSend);
             LogPrint("zrpcunsafe", "%s: Added consolidation output %s with amount=%li\n", opid, addr.GetHash().ToString().c_str(), actualAmountToSend);
 
-            // Add sietch zouts
-            int MIN_ZOUTS = 7;
+            // Add sietch zouts: MIN_ZOUTS dummy zero-value shielded outputs to
+            // randomly-generated z-addresses, so the consolidation tx does not
+            // shrink the anonymity set.
             for(size_t i = 0; i < MIN_ZOUTS; i++) {
-                // In Privacy Zdust We Trust -- Duke
                 string zdust = randomSietchZaddr();
                 auto zaddr   = DecodePaymentAddress(zdust);
                 if (IsValidPaymentAddress(zaddr)) {