feat!: universal redesign — drop Minecraft stack, single-crate architecture

- remove Java plugins (velocity/paper), dashboard, all MC-specific code
  (handshake, death_code, varint, hostname-HMAC); available in history pre-v0.2
- merge crates/* into one package with src/bin/{rampart,rampart-manager,rampart-cli}
- ProtocolHandler trait + registry (no implementations yet), universal PoW kept
- XDP: universal L3/L4 filter (xdp/core/) + pluggable hook API (xdp/hooks/),
  fix IPv6 saddr bug; clang build verified
- docs: bilingual knowledge base (docs/kb/: attacks x4, defense-levels,
  practice x3), rewrite README/architecture for universal concept
- TODO.md v4.0: <=300-line module limit, competitor benchmark section (ref/)
- deploy/CI/docs cleanup: no MC references, new binary names

cargo build/clippy(-D warnings)/test green (55 tests)

deploy/config/edge.toml

@@ -1,39 +1,44 @@
+# Rampart edge — единый конфиг (схема: src/config/sections.rs)
+
 [bind]
 address = "0.0.0.0"
 port = 25565
 
 [backend]
-address = "velocity"
-port = 25577
-
-[hmac]
-secret = "test_secret_32_bytes_long_for_integration_test"
+# Generic TCP-бэкенды за edge-нодой (addr:port)
+upstreams = ["127.0.0.1:25566"]
 
 [workers]
-count = 2
+count = 4
 
 [limits]
 handshake_timeout_secs = 5
 max_connections_per_ip = 10
-rate_limit_status_pps = 2
-rate_limit_login_pps = 5
-rate_limit_burst = 10
+rate_limit_pps = 5.0
+rate_limit_burst = 10.0
+
+[ban]
+ban_duration_secs = 3600
 
 [store]
-redis_url = "redis://redis:6379/0"
+redis_url = ""
 blacklist_cache_ttl_secs = 300
+clickhouse_url = ""
+
+[xdp]
+enabled = false
+interface = "eth0"
 
 [logging]
-level = "debug"
+level = "info"
 format = "text"
 
 [metrics]
 enabled = true
 port = 9090
 
-[xdp]
-enabled = false
-
 [pow]
 enabled = false
 difficulty = 4
+
+whitelist = ["127.0.0.1", "::1"]

deploy/config/paper-global.yml

@@ -1,2 +0,0 @@
-velocity:
-  enabled: false

deploy/config/server.properties

@@ -1,7 +0,0 @@
-server-port=25566
-online-mode=false
-motd=Rampart Test Server
-max-players=20
-spawn-protection=0
-difficulty=peaceful
-gamemode=creative

deploy/config/velocity.toml

@@ -1,12 +0,0 @@
-bind = "0.0.0.0:25577"
-motd = "Rampart Test"
-online-mode = false
-show-max-players = 100
-player-info-forwarding-mode = "NONE"
-try-compressions-on-connect = false
-
-[servers]
-paper = "paper:25566"
-
-[forced-hosts]
-"play.example.com" = "paper"