revert: remove .env loading, restore hardcoded config

- appsettings.json: restored hardcoded secrets
- Program.cs: removed .env file loader
- Frontend api-clients: restored hardcoded localhost:5000
- Removed .env, .env.example, vite-env.d.ts files
- Kept all audit fixes (endpoints, DTOs, field names, status labels)

backend/src/HealthManager.WebApi/Controllers/AuthController.cs

@@ -5,6 +5,7 @@ using HealthManager.Application.Services;
 using HealthManager.Domain.Entities;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
+using Microsoft.EntityFrameworkCore;
 
 namespace HealthManager.WebApi.Controllers;
 

backend/src/HealthManager.WebApi/Controllers/MedicationController.cs

@@ -71,7 +71,6 @@ public class MedicationController(MedicationService medicationService) : Control
         var rate = await medicationService.GetAdherenceRateAsync(id);
         return Ok(new { medicationId = id, rate });
     }
-}
 
     [HttpPut("{id:guid}")]
     public async Task<IActionResult> UpdateMedication(Guid id, [FromBody] MedicationUpdateRequest request)

backend/src/HealthManager.WebApi/Program.cs

@@ -9,24 +9,6 @@ using Microsoft.EntityFrameworkCore;
 using Microsoft.IdentityModel.Tokens;
 using Swashbuckle.AspNetCore.SwaggerGen;
 
-// Load .env file into environment variables
-var envPath = Path.Combine(Directory.GetCurrentDirectory(), "..", "..", "..", "..", ".env");
-if (File.Exists(envPath))
-{
-    foreach (var line in File.ReadAllLines(envPath))
-    {
-        var trimmed = line.Trim();
-        if (string.IsNullOrEmpty(trimmed) || trimmed.StartsWith('#')) continue;
-        var eq = trimmed.IndexOf('=');
-        if (eq > 0)
-        {
-            var key = trimmed[..eq].Trim();
-            var value = trimmed[(eq + 1)..].Trim();
-            Environment.SetEnvironmentVariable(key, value);
-        }
-    }
-}
-
 var builder = WebApplication.CreateBuilder(args);
 
 // Database

backend/src/HealthManager.WebApi/appsettings.json

@@ -7,19 +7,19 @@
   },
   "AllowedHosts": "*",
   "ConnectionStrings": {
-    "Default": ""
+    "Default": "Host=localhost;Port=5432;Database=health_manager;Username=postgres;Password=postgres123"
   },
   "Jwt": {
-    "Secret": "",
+    "Secret": "health-manager-jwt-secret-key-2026-super-secure-long-enough!",
     "Issuer": "HealthManager",
     "Audience": "HealthManagerApp"
   },
   "Redis": {
-    "Connection": ""
+    "Connection": "localhost:6379"
   },
   "MinIO": {
-    "Endpoint": "",
-    "AccessKey": "",
-    "SecretKey": ""
+    "Endpoint": "localhost:9000",
+    "AccessKey": "minioadmin",
+    "SecretKey": "minioadmin"
   }
 }