Fix bin/publish: copy docs.dist from project root

Fix bin/publish: use correct .env path for rspade_system
Fix bin/publish script: prevent grep exit code 1 from terminating script

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

node_modules/ts-jest/dist/utils/json.js

@@ -0,0 +1,16 @@
+"use strict";
+var __importDefault = (this && this.__importDefault) || function (mod) {
+    return (mod && mod.__esModule) ? mod : { "default": mod };
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+exports.stringify = stringify;
+exports.parse = parse;
+const fast_json_stable_stringify_1 = __importDefault(require("fast-json-stable-stringify"));
+const UNDEFINED = 'undefined';
+function stringify(input) {
+    return input === undefined ? UNDEFINED : (0, fast_json_stable_stringify_1.default)(input);
+}
+// eslint-disable-next-line @typescript-eslint/no-explicit-any
+function parse(input) {
+    return input === UNDEFINED ? undefined : JSON.parse(input);
+}