feat(lanes): add --qc boot flag + QC_BOOT_ENV for deterministic QC stacks (E1)

server/lib/lane-runtime.js

@@ -41,7 +41,7 @@ const {
   portBase,
   dbName,
 } = require("./lane-slots");
-const { resolveProfile, profileSearchPaths, runHook } = require("./lane-profile");
+const { resolveProfile, profileSearchPaths, parseQcBootEnv, runHook } = require("./lane-profile");
 const { isListening, listenerPids } = require("./ports");
 const { seedEnv } = require("./lane-env");
 const { ensureDatabase, dropDatabase } = require("./lane-services");
@@ -343,7 +343,7 @@ async function removeLaneData(lane, profile, options = {}) {
  */
 async function upLane(lane, options = {}) {
   const profile = requireProfile(lane);
-  const { build = true, onLine } = options;
+  const { build = true, qc = false, onLine } = options;
 
   let current = lane;
   if (!current.slot) {
@@ -374,9 +374,11 @@ async function upLane(lane, options = {}) {
     await runRequiredHook(current, profile, "migrate", { onLine }, "EMIGRATEFAILED");
     if (db.created) await runRequiredHook(current, profile, "seed", { onLine }, "ESEEDFAILED");
 
+    const bootExtraEnv = qc ? parseQcBootEnv(profile.env.QC_BOOT_ENV) : undefined;
     const boot = await runHook(current, profile, "boot", build ? [] : ["--no-build"], {
       onLine,
       timeoutMs: BOOT_TIMEOUT_MS,
+      extraEnv: bootExtraEnv,
     });
     if (boot.code !== 0) {
       throw Object.assign(new Error(`boot hook exited ${boot.code}`), {