feat(FN-3170): harden plugin bundling contract and fix verification regress

Hardened the roadmap plugin bundling contract with new output-validation tests and tsup config cleanup, then resolved regressions those changes introduced in the bundle and package-config test suites. A small dashboard UI tweak (TaskDetailModal) was also included.

Fusion-Task-Id: FN-3170

packages/cli/scripts/prepare-publish-manifest.mjs

@@ -21,6 +21,8 @@ if (mode === "prepack") {
   delete devDependencies["@fusion/dashboard"];
   delete devDependencies["@fusion/engine"];
   delete devDependencies["@fusion/pi-claude-cli"];
+  delete devDependencies["@fusion/pi-llama-cpp"];
+  delete devDependencies["@fusion-plugin-examples/roadmap"];
 
   pkg.devDependencies = devDependencies;
   writeFileSync(packageJsonPath, `${JSON.stringify(pkg, null, 2)}\n`, "utf8");