♻️ Restructure: Move Astro to repository root

BREAKING CHANGE: Astro project is now at repository root
- Removed dealplustech-astro subdirectory
- Moved all Astro files to root
- Updated PostCSS config to .cjs
- Removed old Next.js files

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✅ Ready for Easypanel deployment (no root dir needed)

Migration path:
- Old structure: /dealplustech-astro/
- New structure: / (root)

dealplustech-astro/node_modules/@astrojs/telemetry/dist/index.d.ts

@@ -1,39 +0,0 @@
-export type AstroTelemetryOptions = {
-    astroVersion: string;
-    viteVersion: string;
-};
-export type TelemetryEvent = {
-    eventName: string;
-    payload: Record<string, any>;
-};
-export declare class AstroTelemetry {
-    private opts;
-    private _anonymousSessionId;
-    private _anonymousProjectInfo;
-    private config;
-    private debug;
-    private isCI;
-    private env;
-    private get astroVersion();
-    private get viteVersion();
-    private get ASTRO_TELEMETRY_DISABLED();
-    private get TELEMETRY_DISABLED();
-    constructor(opts: AstroTelemetryOptions);
-    /**
-     * Get value from either the global config or the provided fallback.
-     * If value is not set, the fallback is saved to the global config,
-     * persisted for later sessions.
-     */
-    private getConfigWithFallback;
-    private get enabled();
-    private get notifyDate();
-    private get anonymousId();
-    private get anonymousSessionId();
-    private get anonymousProjectInfo();
-    private get isDisabled();
-    setEnabled(value: boolean): void;
-    clear(): void;
-    isValidNotice(): boolean;
-    notify(callback: () => boolean | Promise<boolean>): Promise<void>;
-    record(event?: TelemetryEvent | TelemetryEvent[]): Promise<any>;
-}