fix(install): preserve user fleet data on re-seed + refresh active units (CRITICAL) (#632)

Co-authored-by: Jason Woltje <jason@diversecanvas.com>
Co-committed-by: Jason Woltje <jason@diversecanvas.com>

packages/mosaic/src/cli.ts

@@ -27,6 +27,7 @@ import {
   formatAllPackagesTable,
   getInstallAllCommand,
   runFrameworkReseed,
+  refreshActiveFleetUnits,
   readRosterAgentNames,
   buildRelaunchCommands,
   FRAMEWORK_RESEED_PACKAGE,
@@ -466,6 +467,12 @@ program
       const reseed = runFrameworkReseed();
       if (reseed.ok) {
         console.log('✔ Framework re-seeded.');
+        // Propagate shipped systemd unit fixes to the ACTIVE units (re-seed only
+        // touches ~/.config/mosaic/systemd/user; systemd runs ~/.config/systemd/user).
+        const units = refreshActiveFleetUnits();
+        if (units.refreshed.length > 0) {
+          console.log(`✔ Refreshed ${units.refreshed.length} active systemd unit(s).`);
+        }
         const agents = readRosterAgentNames();
         if (agents.length > 0) {
           if (opts.relaunch) {