build: 新增 vite 构建流程

scripts/vite-plugin-feature-flags.ts

@@ -0,0 +1,118 @@
+import type { Plugin } from "rollup";
+
+/**
+ * Default features that match the official CLI build.
+ * Additional features can be enabled via FEATURE_<NAME>=1 env vars.
+ */
+const DEFAULT_BUILD_FEATURES = [
+  "AGENT_TRIGGERS_REMOTE",
+  "CHICAGO_MCP",
+  "VOICE_MODE",
+  "SHOT_STATS",
+  "PROMPT_CACHE_BREAK_DETECTION",
+  "TOKEN_BUDGET",
+  // P0: local features
+  "AGENT_TRIGGERS",
+  "ULTRATHINK",
+  "BUILTIN_EXPLORE_PLAN_AGENTS",
+  "LODESTONE",
+  // P1: API-dependent features
+  "EXTRACT_MEMORIES",
+  "VERIFICATION_AGENT",
+  "KAIROS_BRIEF",
+  "AWAY_SUMMARY",
+  "ULTRAPLAN",
+  // P2: daemon + remote control server
+  "DAEMON",
+  // PR-package restored features
+  "WORKFLOW_SCRIPTS",
+  "HISTORY_SNIP",
+  "CONTEXT_COLLAPSE",
+  "MONITOR_TOOL",
+  "FORK_SUBAGENT",
+  "KAIROS",
+  "COORDINATOR_MODE",
+  "LAN_PIPES",
+  // P3: poor mode
+  "POOR",
+];
+
+/**
+ * Collect enabled feature flags from defaults + env vars.
+ */
+export function getEnabledFeatures(): Set<string> {
+  const envFeatures = Object.keys(process.env)
+    .filter((k) => k.startsWith("FEATURE_"))
+    .map((k) => k.replace("FEATURE_", ""));
+  return new Set([...DEFAULT_BUILD_FEATURES, ...envFeatures]);
+}
+
+// Regex to match feature('FLAG_NAME') calls with string literal arguments
+const FEATURE_CALL_RE = /feature\s*\(\s*['"]([\w]+)['"]\s*\)/g;
+
+/**
+ * Vite/Rollup plugin that replaces `feature('X')` calls with boolean literals
+ * at the transform stage, BEFORE the bundler resolves imports.
+ *
+ * This approach is necessary because some feature-gated code blocks contain
+ * require() calls to files that don't exist (e.g. hunter.js inside
+ * feature('REVIEW_ARTIFACT')). The bundler must see these as dead code
+ * (`if (false) { ... }`) before attempting import resolution.
+ *
+ * Also resolves `import { feature } from 'bun:bundle'` as a virtual module
+ * to prevent "module not found" errors.
+ */
+export default function featureFlagsPlugin(): Plugin {
+  const features = getEnabledFeatures();
+
+  const virtualModuleId = "bun:bundle";
+  const resolvedVirtualModuleId = "\0" + virtualModuleId;
+
+  return {
+    name: "feature-flags",
+
+    // Resolve bun:bundle as a virtual module (prevents "module not found")
+    resolveId(id) {
+      if (id === virtualModuleId) {
+        return resolvedVirtualModuleId;
+      }
+    },
+
+    // Provide a stub export for bun:bundle (unused at runtime after transform)
+    load(id) {
+      if (id === resolvedVirtualModuleId) {
+        return "export function feature(name) { return false; }";
+      }
+    },
+
+    // Replace feature('X') calls with true/false literals at transform time,
+    // and transpile `using` declarations for Node.js compatibility.
+    transform(code, id) {
+      // Skip node_modules
+      if (id.includes("node_modules")) return null;
+
+      let modified = false;
+
+      // 1. Replace feature('X') calls with boolean literals
+      let matchCount = 0;
+      let transformed = code.replace(FEATURE_CALL_RE, (match, flagName) => {
+        matchCount++;
+        return features.has(flagName) ? "true" : "false";
+      });
+      if (matchCount > 0) modified = true;
+
+      // 2. Transpile `using _ = expr;` to `const _ = expr;` for Node.js compat.
+      //    Node.js v22 does not support `using` declarations (Explicit Resource Management).
+      //    Safe because: SLOW_OPERATION_LOGGING is not enabled, so slowLogging returns
+      //    a no-op disposable whose [Symbol.dispose]() is empty.
+      if (transformed.includes("using _")) {
+        transformed = transformed.replace(/\busing\s+(_\w*)\s*=/g, "const $1 =");
+        modified = true;
+      }
+
+      if (!modified) return null;
+
+      return { code: transformed, map: null };
+    },
+  };
+}