refactor: Move Astro to root, use PORT env (default 80), allow all hosts

- Move Astro files from dealplustech-astro/ to project root
- Update Dockerfile: PORT environment variable (default 80)
- Add vite.config.ts with allowedHosts: true
- Matches nixpacks behavior for Easypanel deployment
- No hardcoded ports or domains

node_modules/astro/dist/runtime/server/render/slot.d.ts

@@ -0,0 +1,29 @@
+import type { SSRResult } from '../../../types/public/internal.js';
+import { HTMLString } from '../escape.js';
+import { renderTemplate } from './astro/render-template.js';
+import { type RenderInstance } from './common.js';
+import type { RenderInstruction } from './instruction.js';
+type RenderTemplateResult = ReturnType<typeof renderTemplate>;
+export type ComponentSlots = Record<string, ComponentSlotValue>;
+export type ComponentSlotValue = (result: SSRResult) => RenderTemplateResult | Promise<RenderTemplateResult>;
+declare const slotString: unique symbol;
+export declare class SlotString extends HTMLString {
+    instructions: null | RenderInstruction[];
+    [slotString]: boolean;
+    constructor(content: string, instructions: null | RenderInstruction[]);
+}
+export declare function isSlotString(str: string): str is any;
+/**
+ * Collects instructions from a SlotString into the target array.
+ * Returns the (possibly newly created) instructions array.
+ */
+export declare function mergeSlotInstructions(target: RenderInstruction[] | null, source: SlotString): RenderInstruction[] | null;
+export declare function renderSlot(result: SSRResult, slotted: ComponentSlotValue | RenderTemplateResult, fallback?: ComponentSlotValue | RenderTemplateResult): RenderInstance;
+export declare function renderSlotToString(result: SSRResult, slotted: ComponentSlotValue | RenderTemplateResult, fallback?: ComponentSlotValue | RenderTemplateResult): Promise<string>;
+interface RenderSlotsResult {
+    slotInstructions: null | RenderInstruction[];
+    children: Record<string, string>;
+}
+export declare function renderSlots(result: SSRResult, slots?: ComponentSlots): Promise<RenderSlotsResult>;
+export declare function createSlotValueFromString(content: string): ComponentSlotValue;
+export {};