Fix npm install failures with automatic retry and silent output (#64)

* Initial plan

* Initial investigation: identified npm install failure issue

Co-authored-by: thedotmack <683968+thedotmack@users.noreply.github.com>

* Add retry logic and better error handling to smart-install

Co-authored-by: thedotmack <683968+thedotmack@users.noreply.github.com>

* Fix spacing inconsistency in log messages

Co-authored-by: thedotmack <683968+thedotmack@users.noreply.github.com>

* Refactor worker startup check for better readability

Co-authored-by: thedotmack <683968+thedotmack@users.noreply.github.com>

* Simplify npm install: use plain npm install without flags

Co-authored-by: thedotmack <683968+thedotmack@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: thedotmack <683968+thedotmack@users.noreply.github.com>

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "claude-mem",
-  "version": "5.1.0",
+  "version": "5.1.2",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "claude-mem",
-      "version": "5.1.0",
+      "version": "5.1.2",
       "license": "AGPL-3.0",
       "dependencies": {
         "@anthropic-ai/claude-agent-sdk": "^0.1.27",