feat: Reinitialize frontend with SvelteKit and TypeScript

- Delete old Vite+Svelte frontend
- Initialize new SvelteKit project with TypeScript
- Configure Tailwind CSS v4 + DaisyUI
- Implement JWT authentication with auto-refresh
- Create login page with form validation (Zod)
- Add protected route guards
- Update Docker configuration for single-stage build
- Add E2E tests with Playwright (6/11 passing)
- Fix Svelte 5 reactivity with $state() runes

Known issues:
- 5 E2E tests failing (timing/async issues)
- Token refresh implementation needs debugging
- Validation error display timing

frontend/node_modules/effect/dist/esm/internal/channel/mergeStrategy.js

@@ -0,0 +1,46 @@
+import { dual } from "../../Function.js";
+import { hasProperty } from "../../Predicate.js";
+import * as OpCodes from "../opCodes/channelMergeStrategy.js";
+/** @internal */
+const MergeStrategySymbolKey = "effect/ChannelMergeStrategy";
+/** @internal */
+export const MergeStrategyTypeId = /*#__PURE__*/Symbol.for(MergeStrategySymbolKey);
+/** @internal */
+const proto = {
+  [MergeStrategyTypeId]: MergeStrategyTypeId
+};
+/** @internal */
+export const BackPressure = _ => {
+  const op = Object.create(proto);
+  op._tag = OpCodes.OP_BACK_PRESSURE;
+  return op;
+};
+/** @internal */
+export const BufferSliding = _ => {
+  const op = Object.create(proto);
+  op._tag = OpCodes.OP_BUFFER_SLIDING;
+  return op;
+};
+/** @internal */
+export const isMergeStrategy = u => hasProperty(u, MergeStrategyTypeId);
+/** @internal */
+export const isBackPressure = self => self._tag === OpCodes.OP_BACK_PRESSURE;
+/** @internal */
+export const isBufferSliding = self => self._tag === OpCodes.OP_BUFFER_SLIDING;
+/** @internal */
+export const match = /*#__PURE__*/dual(2, (self, {
+  onBackPressure,
+  onBufferSliding
+}) => {
+  switch (self._tag) {
+    case OpCodes.OP_BACK_PRESSURE:
+      {
+        return onBackPressure();
+      }
+    case OpCodes.OP_BUFFER_SLIDING:
+      {
+        return onBufferSliding();
+      }
+  }
+});
+//# sourceMappingURL=mergeStrategy.js.map