refactor: extract seed provision scripts to dedicated directory

Move bootstrap, default, and inform scripts from inline template
strings in lib/init.ts to standalone files under seed/, loaded via
an esbuild text-loader plugin. Add type-checking (provisions.d.ts,
tsconfig.json) and ESLint config for the seed scripts. Set tsconfig
module to Preserve to support import attributes.

seed/inform.js

@@ -0,0 +1,67 @@
+// Device ID as user name
+const username = declare("DeviceID.ID", { value: 1 }).value[0];
+
+// Password will be fixed for a given device because Math.random() is seeded with device ID by default.
+const password = Math.trunc(Math.random() * Number.MAX_SAFE_INTEGER).toString(
+  36,
+);
+
+const informInterval = 300;
+
+// Refresh values daily
+const daily = Date.now(86400000);
+
+// Unique inform offset per device for better load distribution
+const informTime = daily % 86400000;
+
+declare(
+  "InternetGatewayDevice.ManagementServer.ConnectionRequestUsername",
+  { value: daily },
+  { value: username },
+);
+declare(
+  "InternetGatewayDevice.ManagementServer.ConnectionRequestPassword",
+  { value: daily },
+  { value: password },
+);
+declare(
+  "InternetGatewayDevice.ManagementServer.PeriodicInformEnable",
+  { value: daily },
+  { value: true },
+);
+declare(
+  "InternetGatewayDevice.ManagementServer.PeriodicInformInterval",
+  { value: daily },
+  { value: informInterval },
+);
+declare(
+  "InternetGatewayDevice.ManagementServer.PeriodicInformTime",
+  { value: daily },
+  { value: informTime },
+);
+
+declare(
+  "Device.ManagementServer.ConnectionRequestUsername",
+  { value: daily },
+  { value: username },
+);
+declare(
+  "Device.ManagementServer.ConnectionRequestPassword",
+  { value: daily },
+  { value: password },
+);
+declare(
+  "Device.ManagementServer.PeriodicInformEnable",
+  { value: daily },
+  { value: true },
+);
+declare(
+  "Device.ManagementServer.PeriodicInformInterval",
+  { value: daily },
+  { value: informInterval },
+);
+declare(
+  "Device.ManagementServer.PeriodicInformTime",
+  { value: daily },
+  { value: informTime },
+);