Fix backend deployment Playwright restore issue

JobTrackerApi/Dockerfile

@@ -16,6 +16,11 @@ FROM mcr.microsoft.com/dotnet/aspnet:9.0 AS runtime
 WORKDIR /app
 
 ENV ASPNETCORE_URLS=http://+:8080
+ENV CV_PDF_BROWSER_PATH=/usr/bin/chromium
+
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends chromium \
+    && rm -rf /var/lib/apt/lists/*
 
 RUN mkdir -p /data
 

JobTrackerApi/Services/PlaywrightCvPdfExporter.cs

@@ -1,4 +1,5 @@
-using Microsoft.Playwright;
+using System.Diagnostics;
+using System.Text;
 
 namespace JobTrackerApi.Services;
 
@@ -11,6 +12,18 @@ public interface ICvPdfExporter
 
 public sealed class PlaywrightCvPdfExporter : ICvPdfExporter
 {
+    private static readonly string[] BrowserCandidates =
+    {
+        "chromium",
+        "chromium-browser",
+        "google-chrome",
+        "google-chrome-stable",
+        "/usr/bin/chromium",
+        "/usr/bin/chromium-browser",
+        "/usr/bin/google-chrome",
+        "/usr/bin/google-chrome-stable"
+    };
+
     private readonly AppPaths _paths;
     private readonly ILogger<PlaywrightCvPdfExporter> _logger;
 
@@ -25,42 +38,141 @@ public sealed class PlaywrightCvPdfExporter : ICvPdfExporter
         var now = DateTimeOffset.UtcNow;
         var folder = Path.Combine(_paths.CvExportsRoot, now.ToString("yyyyMMdd"));
         Directory.CreateDirectory(folder);
+
         var fileName = string.IsNullOrWhiteSpace(renderResult.SuggestedFileName)
             ? $"tailored-cv-{now:yyyyMMddHHmmss}.pdf"
             : renderResult.SuggestedFileName;
         var storagePath = Path.Combine(folder, fileName);
 
+        var tempRoot = Path.Combine(Path.GetTempPath(), "jobtracker-cv-pdf", Guid.NewGuid().ToString("n"));
+        var htmlPath = Path.Combine(tempRoot, "document.html");
+        var userDataDir = Path.Combine(tempRoot, "profile");
+
+        Directory.CreateDirectory(tempRoot);
+        Directory.CreateDirectory(userDataDir);
+
         try
         {
-            using var playwright = await Playwright.CreateAsync();
+            await File.WriteAllTextAsync(htmlPath, renderResult.Html ?? string.Empty, Encoding.UTF8, cancellationToken);
-            await using var browser = await playwright.Chromium.LaunchAsync(new BrowserTypeLaunchOptions
+
+            var browserPath = ResolveBrowserPath();
+            if (string.IsNullOrWhiteSpace(browserPath))
             {
-                Headless = true,
+                throw new InvalidOperationException("CV PDF export is unavailable. Install Chromium/Google Chrome or set CV_PDF_BROWSER_PATH.");
-            });
+            }
-            var page = await browser.NewPageAsync();
+
-            await page.SetContentAsync(renderResult.Html, new PageSetContentOptions
+            var arguments = BuildArguments(userDataDir, storagePath, htmlPath);
+            var startInfo = new ProcessStartInfo();
+            startInfo.FileName = browserPath;
+            startInfo.Arguments = arguments;
+            startInfo.RedirectStandardOutput = true;
+            startInfo.RedirectStandardError = true;
+            startInfo.UseShellExecute = false;
+            startInfo.CreateNoWindow = true;
+
+            using var process = new Process();
+            process.StartInfo = startInfo;
+            process.Start();
+            await process.WaitForExitAsync(cancellationToken);
+
+            var stdout = await process.StandardOutput.ReadToEndAsync();
+            var stderr = await process.StandardError.ReadToEndAsync();
+
+            if (process.ExitCode != 0)
             {
-                WaitUntil = WaitUntilState.Load,
+                throw new InvalidOperationException($"CV PDF export failed via browser CLI. ExitCode={process.ExitCode}. Stdout={stdout}. Stderr={stderr}");
-            });
+            }
-            var bytes = await page.PdfAsync(new PagePdfOptions
+
+            if (!File.Exists(storagePath))
             {
-                Format = "A4",
+                throw new InvalidOperationException($"CV PDF export did not create the expected file at {storagePath}.");
-                PrintBackground = true,
+            }
-                Margin = new()
+
-                {
+            var bytes = await File.ReadAllBytesAsync(storagePath, cancellationToken);
-                    Top = "0",
-                    Right = "0",
-                    Bottom = "0",
-                    Left = "0",
-                }
-            });
-            await File.WriteAllBytesAsync(storagePath, bytes, cancellationToken);
             return new CvPdfArtifact(fileName, storagePath, bytes);
         }
         catch (Exception ex)
         {
             _logger.LogError(ex, "Failed to export CV PDF to {Path}", storagePath);
-            throw new InvalidOperationException("CV PDF export is unavailable. Ensure Chromium is installed for Playwright on this machine.", ex);
+            throw;
+        }
+        finally
+        {
+            TryDeleteDirectory(tempRoot);
         }
     }
+
+    private static string BuildArguments(string userDataDir, string storagePath, string htmlPath)
+    {
+        var parts = new List<string>
+        {
+            "--headless=new",
+            "--disable-gpu",
+            "--no-sandbox",
+            "--disable-dev-shm-usage",
+            "--allow-file-access-from-files",
+            "--enable-local-file-accesses",
+            "--user-data-dir=" + Quote(userDataDir),
+            "--print-to-pdf=" + Quote(storagePath),
+            Quote(htmlPath)
+        };
+
+        return string.Join(' ', parts);
+    }
+
+    private static string? ResolveBrowserPath()
+    {
+        var configured = Environment.GetEnvironmentVariable("CV_PDF_BROWSER_PATH");
+        if (!string.IsNullOrWhiteSpace(configured) && File.Exists(configured))
+        {
+            return configured;
+        }
+
+        foreach (var candidate in BrowserCandidates)
+        {
+            if (Path.IsPathRooted(candidate))
+            {
+                if (File.Exists(candidate)) return candidate;
+                continue;
+            }
+
+            var resolved = FindOnPath(candidate);
+            if (!string.IsNullOrWhiteSpace(resolved)) return resolved;
+        }
+
+        return null;
+    }
+
+    private static string? FindOnPath(string fileName)
+    {
+        var path = Environment.GetEnvironmentVariable("PATH") ?? string.Empty;
+        var parts = path.Split(Path.PathSeparator, StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+        foreach (var dir in parts)
+        {
+            var fullPath = Path.Combine(dir, fileName);
+            if (File.Exists(fullPath)) return fullPath;
+        }
+
+        return null;
+    }
+
+    private static void TryDeleteDirectory(string path)
+    {
+        try
+        {
+            if (Directory.Exists(path))
+            {
+                Directory.Delete(path, recursive: true);
+            }
+        }
+        catch
+        {
+            // best effort temp cleanup
+        }
+    }
+
+    private static string Quote(string value)
+    {
+        return '"' + value.Replace("\\", "\\\\").Replace("\"", "\\\"") + '"';
+    }
 }

JobTrackerBackend/JobTrackerBackend.csproj

@@ -27,7 +27,6 @@
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="9.0.14" />
-    <PackageReference Include="Microsoft.Playwright" Version="1.55.0" />
     <PackageReference Include="System.IdentityModel.Tokens.Jwt" Version="8.14.0" />
     <PackageReference Include="Microsoft.IdentityModel.Protocols.OpenIdConnect" Version="8.14.0" />
   </ItemGroup>