fix: pack full desktop dependency closure + resolve bun/desktop plugin loading on Windows

Desktop "Local" mode crashed with ERR_MODULE_NOT_FOUND because electron-builder's
pnpm collector drops `deduped` subtrees, so engine's transitive closure
(@modelcontextprotocol/sdk, pi-ai provider SDKs, etc.) was never packed. Stage the
complete flat prod closure with `pnpm deploy --legacy --config.node-linker=hoisted`
and package it via `electron-builder --projectDir deploy`, bypassing the lossy
collector entirely.

Also make the dashboard-imported example plugins loadable under plain Node (the
Electron main runtime): cursor/droid/roadmap now expose compiled `dist` on the
`import` condition (keeping `source`→src for the bun CLI) and are built during the
desktop build. Add `source` conditions to paperclip/agent-browser/even-cards/
even-realities-glasses/whatsapp-chat so the bun `--conditions=source` Windows CLI
compile resolves them from source.

Validated on macOS: @fusion/core|engine|dashboard import cleanly from the staged
deploy; packing yields a complete 705-package asar; bun-windows-x64 cross-compiles
with all plugin dist removed.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

plugins/fusion-plugin-agent-browser/package.json

@@ -7,6 +7,7 @@
   "exports": {
     ".": {
       "types": "./src/index.ts",
+      "source": "./src/index.ts",
       "import": "./dist/index.js"
     }
   },

plugins/fusion-plugin-cursor-runtime/package.json

@@ -11,11 +11,13 @@
   "exports": {
     ".": {
       "types": "./src/index.ts",
-      "import": "./src/index.ts"
+      "source": "./src/index.ts",
+      "import": "./dist/index.js"
     },
     "./probe": {
       "types": "./src/probe.ts",
-      "import": "./src/probe.ts"
+      "source": "./src/probe.ts",
+      "import": "./dist/probe.js"
     }
   },
   "private": true,

plugins/fusion-plugin-droid-runtime/package.json

@@ -11,11 +11,13 @@
   "exports": {
     ".": {
       "types": "./src/index.ts",
-      "import": "./src/index.ts"
+      "source": "./src/index.ts",
+      "import": "./dist/index.js"
     },
     "./probe": {
       "types": "./src/probe.ts",
-      "import": "./src/probe.ts"
+      "source": "./src/probe.ts",
+      "import": "./dist/probe.js"
     }
   },
   "private": true,

plugins/fusion-plugin-even-cards/package.json

@@ -7,6 +7,7 @@
   "exports": {
     ".": {
       "types": "./src/index.ts",
+      "source": "./src/index.ts",
       "import": "./dist/index.js"
     }
   },

plugins/fusion-plugin-even-realities-glasses/package.json

@@ -12,6 +12,7 @@
   "exports": {
     ".": {
       "types": "./src/index.ts",
+      "source": "./src/index.ts",
       "import": "./dist/index.js"
     }
   },

plugins/fusion-plugin-paperclip-runtime/package.json

@@ -9,6 +9,7 @@
   "exports": {
     ".": {
       "types": "./src/index.ts",
+      "source": "./src/index.ts",
       "import": "./dist/index.js"
     }
   },

plugins/fusion-plugin-roadmap/package.json

@@ -7,15 +7,18 @@
   "exports": {
     ".": {
       "types": "./src/index.ts",
-      "import": "./src/index.ts"
+      "source": "./src/index.ts",
+      "import": "./dist/index.js"
     },
     "./server": {
       "types": "./src/server/index.d.ts",
-      "import": "./src/server/index.ts"
+      "source": "./src/server/index.ts",
+      "import": "./dist/server/index.js"
     },
     "./roadmap-suggestions": {
       "types": "./src/roadmap-suggestions.d.ts",
-      "import": "./src/roadmap-suggestions.ts"
+      "source": "./src/roadmap-suggestions.ts",
+      "import": "./dist/roadmap-suggestions.js"
     }
   },
   "scripts": {

plugins/fusion-plugin-whatsapp-chat/package.json

@@ -12,6 +12,7 @@
   "exports": {
     ".": {
       "types": "./src/index.ts",
+      "source": "./src/index.ts",
       "import": "./dist/index.js"
     }
   },