Phase 1 MVP - Complete implementation

- Login with JWT and refresh token rotation
- Dashboard with projects cards
- ProjectView with TreeView navigation
- DocumentView with markdown editor and auto-save
- Tag management (create, assign, remove)
- Dark mode CSS variables
- Security fixes applied (logout to backend, createDocument endpoint)

node_modules/muggle-string/out/track.d.ts

@@ -0,0 +1,6 @@
+import { Segment, StackNode } from "./types";
+export declare function setTracking(value: boolean): void;
+export declare function offsetStack(): void;
+export declare function resetOffsetStack(): void;
+export declare function track<T extends Segment<any>[]>(segments: T, stacks?: StackNode[]): [T, StackNode[]];
+export declare function getStack(): string;