chore(release): re-sign helpers manifest for 3.42.5 (ADR-174)

scripts/verify-helpers.mjs pins the signed manifest to the package version, so
the 3.42.4 -> 3.42.5 bump invalidated it:

  [verify-helpers] manifest version 3.42.4 != package.json 3.42.5

Re-signed the 4 critical helpers (auto-memory-hook.mjs, hook-handler.cjs,
intelligence.cjs, statusline.cjs) with ruflo-helpers-signing-key from GCP
Secret Manager (ruv-dev). Verify now reports:

  [verify-helpers] ok — 4 helpers match signed manifest @ 3.42.5

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

v3/@claude-flow/cli/.claude/helpers/helpers.manifest.json

@@ -1,6 +1,6 @@
 {
   "manifest": {
-    "version": "3.42.4",
+    "version": "3.42.5",
     "files": {
       "auto-memory-hook.mjs": "85fe05c757421c52137c0bc8545a0896bab6b4714538c2a11d1d0835bfcc8c1c",
       "hook-handler.cjs": "209d9fafe10e17d1be0866727f6f9cf9ac66f9a0793f1c793a4f58319e8e4583",
@@ -8,6 +8,6 @@
       "statusline.cjs": "4a48353b4f1566fa4379b00fd0321b6676a22b6cc91fbbd8380ac5183d619468"
     }
   },
-  "signature": "zyopDoOW51Qkc0k2PpDbEv/puqT45lcx8EFnRQmwioIEDI/mv8KV140ZWcjEaa7lvIDW/epdB333K7bMW122Dw==",
+  "signature": "vKGy5o0MCknsugr2YSBRJojeNK1T+3et2Aqtj8MMFdgX6XeKHZglXkBjfNC6Jh74afqiXGBQlUs7VQgMf7daDQ==",
   "algorithm": "ed25519"
 }