Add sideEffects: false to all library packages

Enables tree-shaking for bundlers by marking all library packages
as side-effect-free.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

packages/api-contract/package.json

@@ -2,6 +2,7 @@
   "name": "@reviq/api-contract",
   "version": "0.0.1",
   "type": "module",
+  "sideEffects": false,
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "exports": {

packages/common/package.json

@@ -2,6 +2,7 @@
   "name": "@reviq/common",
   "version": "0.0.1",
   "type": "module",
+  "sideEffects": false,
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "exports": {

packages/db-schema/package.json

@@ -3,6 +3,7 @@
   "version": "0.0.1",
   "private": true,
   "type": "module",
+  "sideEffects": false,
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "exports": {

packages/db/package.json

@@ -3,6 +3,7 @@
   "version": "0.0.1",
   "private": true,
   "type": "module",
+  "sideEffects": false,
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "exports": {

packages/frontend-utils/package.json

@@ -2,6 +2,7 @@
   "name": "@reviq/frontend-utils",
   "version": "0.0.1",
   "type": "module",
+  "sideEffects": false,
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "exports": {

packages/server-utils/package.json

@@ -2,6 +2,7 @@
   "name": "@reviq/server-utils",
   "version": "0.0.1",
   "type": "module",
+  "sideEffects": false,
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "exports": {

packages/testing/test-helpers/package.json

@@ -3,6 +3,7 @@
   "version": "0.0.1",
   "private": true,
   "type": "module",
+  "sideEffects": false,
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "exports": {

packages/testing/virtual-authenticator/package.json

@@ -3,6 +3,7 @@
   "version": "0.0.1",
   "private": true,
   "type": "module",
+  "sideEffects": false,
   "main": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "exports": {