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/@ark/schema/out/predicate.d.ts

@@ -0,0 +1,52 @@
+import { BaseConstraint } from "./constraint.ts";
+import type { NodeCompiler } from "./shared/compile.ts";
+import type { BaseErrorContext, BaseNormalizedSchema, declareNode } from "./shared/declare.ts";
+import { type nodeImplementationOf } from "./shared/implement.ts";
+import type { JsonSchema } from "./shared/jsonSchema.ts";
+import { type RegisteredReference } from "./shared/registry.ts";
+import type { ToJsonSchema } from "./shared/toJsonSchema.ts";
+import type { Traversal, TraverseAllows, TraverseApply } from "./shared/traversal.ts";
+export declare namespace Predicate {
+    type Schema<predicate extends Predicate = Predicate> = NormalizedSchema<predicate> | predicate;
+    interface NormalizedSchema<predicate extends Predicate = Predicate> extends BaseNormalizedSchema {
+        readonly predicate: predicate;
+    }
+    interface Inner<predicate extends Predicate = Predicate> {
+        readonly predicate: predicate;
+    }
+    interface ErrorContext extends BaseErrorContext<"predicate"> {
+        readonly predicate?: Predicate;
+    }
+    interface Declaration extends declareNode<{
+        kind: "predicate";
+        schema: Schema;
+        normalizedSchema: NormalizedSchema;
+        inner: Inner;
+        intersectionIsOpen: true;
+        errorContext: ErrorContext;
+    }> {
+    }
+    type Node = PredicateNode;
+}
+export declare class PredicateNode extends BaseConstraint<Predicate.Declaration> {
+    serializedPredicate: RegisteredReference;
+    compiledCondition: string;
+    compiledNegation: string;
+    impliedBasis: null;
+    expression: string;
+    traverseAllows: TraverseAllows;
+    errorContext: Predicate.ErrorContext;
+    compiledErrorContext: string;
+    traverseApply: TraverseApply;
+    compile(js: NodeCompiler): void;
+    reduceJsonSchema(base: JsonSchema.Constrainable, ctx: ToJsonSchema.Context): JsonSchema;
+}
+export declare const Predicate: {
+    implementation: nodeImplementationOf<Predicate.Declaration>;
+    Node: typeof PredicateNode;
+};
+export type Predicate<data = any> = (data: data, ctx: Traversal) => boolean;
+export declare namespace Predicate {
+    type Casted<input = never, narrowed extends input = input> = (input: input, ctx: Traversal) => input is narrowed;
+    type Castable<input = never, narrowed extends input = input> = Predicate<input> | Casted<input, narrowed>;
+}