[Bug] Plugin install command succeeds without persisting installation state

Bug Description
The claude plugin install command validates and reports success but does not write to any persistent storage file to track installed plugins.

Environment Info

• Platform: win32
• Terminal: null
• Version: 2.0.55
• Feedback ID: d52cdf67-b04c-43cb-ac2a-f42b1c58c9bc

Errors

[{"error":"ZodError: [\n  {\n    \"code\": \"invalid_type\",\n    \"expected\": \"number\",\n    \"received\": \"undefined\",\n    \"path\": [\n      \"version\"\n    ],\n    \"message\": \"Required\"\n  },\n  {\n    \"code\": \"invalid_type\",\n    \"expected\": \"object\",\n    \"received\": \"undefined\",\n    \"path\": [\n      \"plugins\"\n    ],\n    \"message\": \"Required\"\n  }\n]\n    at get error [as error] (file:///C:/Users/ukfdb/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:74:18427)\n    at SY.parse (file:///C:/Users/ukfdb/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:74:11696)\n    at PXA (file:///C:/Users/ukfdb/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2824:6624)\n    at cM3 (file:///C:/Users/ukfdb/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2824:7622)\n    at Lg (file:///C:/Users/ukfdb/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2824:7653)\n    at Object.isRelevant (file:///C:/Users/ukfdb/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2827:104)\n    at file:///C:/Users/ukfdb/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2824:10935\n    at Array.map (<anonymous>)\n    at fZ1 (file:///C:/Users/ukfdb/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:2824:10924)\n    at uY1 (file:///C:/Users/ukfdb/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js:4543:11715)","timestamp":"2025-12-01T09:56:43.480Z"}]