Harvest DragonX packaging + legal artifacts from compliant-rebrand

Legal: correct GPLv3 LICENSE (fixes garbled 'GENERAL GENERAL'), AUTHORS DragonX attribution, COPYING. Packaging: man pages REGENERATED from the 1.0.3 binaries via help2man (dragonxd/dragonx-cli/dragonx-tx.1 -> v1.0.3, correct dates), wired into doc/man/Makefile.am (dist_man1_MANS), orphaned hush*.1 removed. Init/openrc/systemd scripts, Debian packaging (control/changelog/copyright rebranded hush->dragonx + install stubs), example confs taken from origin/compliant-rebrand (c05134e77). REMAINING follow-ups: (1) debian/changelog still tops at 1.0.0 - add a 1.0.3 entry; (2) dragonx-cli --help hardcodes rpcport default 18030 (hush) - fix the HelpMessage string in source then regen. Staged on 176 for review; not pushed.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

contrib/init/dragonxd.conf

@@ -0,0 +1,59 @@
+description "Hush Daemon"
+
+start on runlevel [2345]
+stop on starting rc RUNLEVEL=[016]
+
+env HUSHD_BIN="/usr/bin/dragonxd"
+env HUSHD_USER="hush"
+env HUSHD_GROUP="hush"
+env HUSHD_PIDDIR="/var/run/dragonxd"
+# upstart can't handle variables constructed with other variables
+env HUSHD_PIDFILE="/var/run/dragonxd/dragonxd.pid"
+env HUSHD_CONFIGFILE="/etc/hush/hush.conf"
+env HUSHD_DATADIR="/var/lib/dragonxd"
+
+expect fork
+
+respawn
+respawn limit 5 120
+kill timeout 60
+
+pre-start script
+    # this will catch non-existent config files
+    # dragonxd will check and exit with this very warning, but it can do so
+    # long after forking, leaving upstart to think everything started fine.
+    # since this is a commonly encountered case on install, just check and
+    # warn here.
+    if ! grep -qs '^rpcpassword=' "$HUSHD_CONFIGFILE" ; then
+        echo "ERROR: You must set a secure rpcpassword to run dragonxd."
+        echo "The setting must appear in $HUSHD_CONFIGFILE"
+        echo
+        echo "This password is security critical to securing wallets "
+        echo "and must not be the same as the rpcuser setting."
+        echo "You can generate a suitable random password using the following"
+        echo "command from the shell:"
+        echo
+        echo "bash -c 'tr -dc a-zA-Z0-9 < /dev/urandom | head -c32 && echo'"
+        echo
+        exit 1
+    fi
+
+    mkdir -p "$HUSHD_PIDDIR"
+    chmod 0755 "$HUSHD_PIDDIR"
+    chown $HUSHD_USER:$HUSHD_GROUP "$HUSHD_PIDDIR"
+    chown $HUSHD_USER:$HUSHD_GROUP "$HUSHD_CONFIGFILE"
+    chmod 0660 "$HUSHD_CONFIGFILE"
+end script
+
+exec start-stop-daemon \
+    --start \
+    --pidfile "$HUSHD_PIDFILE" \
+    --chuid $HUSHD_USER:$HUSHD_GROUP \
+    --exec "$HUSHD_BIN" \
+    -- \
+    -pid="$HUSHD_PIDFILE" \
+    -conf="$HUSHD_CONFIGFILE" \
+    -datadir="$HUSHD_DATADIR" \
+    -disablewallet \
+    -daemon
+