Harden network security, fix moneysupply tracking, version system overhaul (v5.8.0)

- Fix moneysupply calculation in FastImportBlockFile and ConnectBlock assumevalid path
- Route bootstrap downloads through Tor SOCKS proxy (no more clearnet leaks)
- Remove hardcoded clearnet fallback IP from bootstrap
- Fix snprintf missing argument in walletmodel.cpp narration key (UB/crash)
- Fix potential null deref from db_strerror() in rpcwallet.cpp
- Filter non-.onion addresses from HTTPS seed list parser
- Add periodic re-seeding when node has 0 outbound peers
- Make clientversion.h single source of truth for version display string
- Remove redundant DISPLAY_VERSION macros from version.h
- Update README: max supply 2,222,222, CMake build instructions, Tor-only config

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/clientversion.h

@@ -7,8 +7,8 @@
 
 // These need to be macros, as version.cpp's and triangles-qt.rc's voodoo requires it
 #define CLIENT_VERSION_MAJOR       5
-#define CLIENT_VERSION_MINOR       7
-#define CLIENT_VERSION_REVISION    9
+#define CLIENT_VERSION_MINOR       8
+#define CLIENT_VERSION_REVISION    0
 #define CLIENT_VERSION_BUILD       0
 
 // Converts the parameter X to a string after macro replacement on X has been performed.