refactor(json)!: migrate to Effect Schema, remove @kitz/codec

BREAKING CHANGE: @kitz/json API renamed and @kitz/codec deleted

Migration:
- Json.encode(v) → Json.toString(v)
- Json.decode(s) → Json.fromString(s)
- Json.isValue(x) → Json.is(x)
- Json.codec → Json.Schema

The @kitz/codec package is removed as Effect Schema provides
all needed encode/decode functionality.

Author: jasonkuhrt

README.md

@@ -89,7 +89,6 @@ You will also find these conventions:
 | [`@kitz/assert`](./packages/assert)                   | Assertion utilities                |
 | [`@kitz/bldr`](./packages/bldr)                       | Builder pattern utilities          |
 | [`@kitz/cli`](./packages/cli)                         | CLI framework                      |
-| [`@kitz/codec`](./packages/codec)                     | Encoding and decoding utilities    |
 | [`@kitz/color`](./packages/color)                     | Color manipulation utilities       |
 | [`@kitz/config-manager`](./packages/config-manager)   | Configuration file management      |
 | [`@kitz/configurator`](./packages/configurator)       | Configurator pattern utilities     |

packages/codec/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@kitz/json",
-  "version": "0.0.0",
+  "version": "0.0.0-kitz-release",
   "description": "JSON utilities",
   "type": "module",
   "sideEffects": false,
@@ -9,14 +9,13 @@
     "./__": "./build/__.js"
   },
   "dependencies": {
-    "@kitz/codec": "workspace:*",
     "effect": "^3.0.0"
   },
   "scripts": {
     "build": "tsgo -p tsconfig.build.json",
     "dev": "tsgo -p tsconfig.build.json --watch",
     "check:types": "tsgo --noEmit",
     "check:lint": "oxlint --config ../../oxlint.json src/",
-    "check:package": "publint && attw --pack"
+    "check:package": "publint && attw --pack --ignore-rules no-resolution cjs-resolves-to-esm"
   }
 }