Align package versions with docs: 1.0.0 -> 0.8.1

The docs/roadmap use the 0.8.x scheme; package.json was scaffold-default 1.0.0.
The startup banner reads its version from package.json, so it now reports 0.8.1.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "breedr",
-  "version": "1.0.0",
+  "version": "0.8.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "breedr",
-      "version": "1.0.0",
+      "version": "0.8.1",
       "license": "UNLICENSED",
       "dependencies": {
         "better-sqlite3": "^11.10.0",