chore: make SDK packages publishable

packages/contracts/package.json

@@ -2,7 +2,6 @@
   "name": "@open-matrix/contracts",
   "version": "0.1.3",
   "description": "Type contracts for Matrix substrate (placement, service registry, runtime presence). Almost zero runtime — one pure function (decideMatrixPlacementBind) plus pure types. Zero @open-matrix/core dependency. Extracted from @open-matrix/core during core-decontamination Phase 2 so schema evolution doesn't rebuild the actor kernel.",
-  "private": true,
   "type": "module",
   "sideEffects": false,
   "main": "dist/index.js",

packages/core/package.json

@@ -1,6 +1,5 @@
 {
   "name": "@open-matrix/core",
-  "private": true,
   "version": "0.1.3",
   "description": "Matrix runtime SDK \u2014 actors, Web Components, transports, serialization, and LISP-on-Protocol",
   "type": "module",

packages/federation/package.json

@@ -1,6 +1,5 @@
 {
   "name": "@open-matrix/federation",
-  "private": true,
   "version": "0.2.3",
   "description": "Matrix federation layer: mailbox-based cross-realm messaging with legacy (matrix3) and modern (mxenv1) wire format support and security guardrails.",
   "license": "UNLICENSED",

packages/omega-core/package.json

@@ -3,7 +3,6 @@
   "version": "0.1.3",
   "type": "module",
   "description": "Narrow Omega core/interpreter facade for Matrix membrane consumers",
-  "private": true,
   "main": "./dist/index.js",
   "types": "./dist/packages/omega-core/src/index.d.ts",
   "exports": {

packages/sdk/package.json

@@ -3,7 +3,6 @@
   "version": "0.1.3",
   "description": "Public Matrix actor SDK facade for package authors.",
   "type": "module",
-  "private": true,
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "exports": {