release: roll WASM Zone OOM fix into 0.9.3 (not 0.9.4) (#323)

0.9.3 was prepped in the repo but never released (latest published is
0.9.2), so the turboshaft WASM Zone OOM fix ships as part of 0.9.3.
Fold its changelog entry into [0.9.3] and revert the version bump.

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "@colbymchenry/codegraph",
-  "version": "0.9.4",
+  "version": "0.9.3",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@colbymchenry/codegraph",
-      "version": "0.9.4",
+      "version": "0.9.3",
       "license": "MIT",
       "dependencies": {
         "@clack/prompts": "^1.3.0",