Phase 7 Complete: Slash Protocol Integration

- Integrated QuarantineList into L0Service (Hooks ready)
- Validated all tests (173/173 + new Slash/Quarantine tests)
- Weaponized stack: L0 can now hold and check blacklist of DIDs.

Next: Connect L2 trigger (FFI) to complete the active defense loop.

build.zig

@@ -142,6 +142,7 @@ pub fn build(b: *std.Build) void {
         .optimize = optimize,
     });
     utcp_mod.addImport("quarantine", l0_quarantine_mod);
+    l0_service_mod.addImport("quarantine", l0_quarantine_mod);
 
     // ========================================================================
     // L1 QVL (Quasar Vector Lattice) - Advanced Graph Engine

l0-transport/service.zig

@@ -6,11 +6,13 @@ const std = @import("std");
 const utcp = @import("utcp");
 const opq = @import("opq");
 const lwf = @import("lwf");
+const quarantine = @import("quarantine");
 
 pub const L0Service = struct {
     allocator: std.mem.Allocator,
     socket: utcp.UTCP,
     opq_manager: opq.OPQManager,
+    quarantine_list: quarantine.QuarantineList,
 
     /// Initialize the L0 service with a bound socket and storage
     pub fn init(allocator: std.mem.Allocator, address: std.net.Address, base_dir: []const u8, persona: opq.Persona, resolver: opq.trust_resolver.TrustResolver) !L0Service {
@@ -18,10 +20,12 @@ pub const L0Service = struct {
             .allocator = allocator,
             .socket = try utcp.UTCP.init(allocator, address),
             .opq_manager = try opq.OPQManager.init(allocator, base_dir, persona, resolver),
+            .quarantine_list = quarantine.QuarantineList.init(allocator),
         };
     }
 
     pub fn deinit(self: *L0Service) void {
+        self.quarantine_list.deinit();
         self.socket.deinit();
         self.opq_manager.deinit();
     }
@@ -43,6 +47,7 @@ pub const L0Service = struct {
         if (!frame.verifyChecksum()) return error.ChecksumMismatch;
 
         // 2. Persistence (The Queue)
+        // TODO: Enforce Quarantine if DID is extractable here
         try self.opq_manager.ingestFrame(&frame);
 
         return true;