fix(plugin-catalog): pin claude-subscription-directsdk to 602393b (prompt cache holds across tool rounds)

Moves the pin 885ba10 -> 602393b so `hermes plugins update` delivers the
second half of plugin issue #14: native's per-request context no longer
carries the message cache breakpoint, so long tool-heavy sessions stop
re-writing their whole history to cache every round (plugin #30 + #31).

plugin-catalog/claude-subscription-directsdk.yaml

@@ -1,6 +1,6 @@
 name: claude-subscription-directsdk
 repo: https://github.com/NousResearch/hermes-plugin-claude-subscription-directsdk
-sha: 885ba106e7a26b785ceab5dbdc835299631c6594
+sha: 602393b6d3ea148bc618cd23da1a13fa332e1433
 description: Experimental model provider that runs Hermes turns on a Claude Pro/Max subscription through
   the official Claude Code CLI (the Agent SDK path), so no separate API key or per-token bill. Requires
   the claude CLI installed and logged in; the plugin checks for it at load, in hermes model, in the pickers
@@ -14,7 +14,7 @@ requires_hermes: ">=0.21.4"
 docs_url: https://github.com/NousResearch/hermes-plugin-claude-subscription-directsdk#readme
 version: "0.3.0"
 platforms: []
-image: https://raw.githubusercontent.com/NousResearch/hermes-plugin-claude-subscription-directsdk/885ba106e7a26b785ceab5dbdc835299631c6594/assets/card.png
+image: https://raw.githubusercontent.com/NousResearch/hermes-plugin-claude-subscription-directsdk/602393b6d3ea148bc618cd23da1a13fa332e1433/assets/card.png
 capabilities:
   provides_tools: []
   provides_hooks: []