chore(release): bump to 1.0.0 and backfill versioned changelog history

Splits the single [Unreleased] CHANGELOG block into dated 0.1.0-1.0.0
sections matching the milestone commits being tagged for issue #24
(numeric release tags), and bumps every package.json to 1.0.0.

apps/api/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@trawl/api",
-  "version": "0.1.0",
+  "version": "1.0.0",
   "private": true,
   "scripts": {
     "dev": "bun run --watch src/index.ts",

apps/web/package.json

@@ -1,6 +1,6 @@
 {
   "name": "@trawl/web",
-  "version": "0.1.0",
+  "version": "1.0.0",
   "private": true,
   "scripts": {
     "dev": "nuxt dev",