Fix node:sqlite V8 crash on invalid UTF-8 in text columns (#272)

node:sqlite calls v8::String::NewFromUtf8 with kAbort on TEXT columns.
Cursor chat blobs often contain truncated multi-byte chars from streaming
boundaries, which triggers a V8 CHECK abort (not a JS exception).

Select all text-content columns as CAST(col AS BLOB) so node:sqlite
returns Uint8Array instead. Decode in JS with TextDecoder fatal:false
which replaces bad bytes with U+FFFD. Covers all three SQLite providers
(Cursor, Goose, OpenCode).

Removes the version blocklist (MIN_NODE_22_PATCH) and lowers engines
requirement from >=22.20 to >=22 since the BLOB cast approach works
on all Node 22.x versions.

Closes #264
Closes #250

package.json

@@ -30,7 +30,7 @@
     "developer-tools"
   ],
   "engines": {
-    "node": ">=22.20"
+    "node": ">=22"
   },
   "author": "AgentSeal <hello@agentseal.org>",
   "license": "MIT",