File paths dynamic (#2605)

# Description

Please provide a summary of the changes, including relevant motivation
and context.

Closes #(issue_number)

## Checklist

- [ ] I have read the [Contribution
Guidelines](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/CONTRIBUTING.md)
- [ ] I have performed a self-review of my own code
- [ ] I have attached images of the change if it is UI based
- [ ] I have commented my code, particularly in hard-to-understand areas
- [ ] If my code has heavily changed functionality I have updated
relevant docs on [Stirling-PDFs doc
repo](https://github.com/Stirling-Tools/Stirling-Tools.github.io/blob/main/docs/)
- [ ] My changes generate no new warnings
- [ ] I have read the section [Add New Translation
Tags](https://github.com/Stirling-Tools/Stirling-PDF/blob/main/HowToAddNewLanguage.md#add-new-translation-tags)
(for new translation tags only)

---------

Co-authored-by: pixeebot[bot] <104101892+pixeebot[bot]@users.noreply.github.com>
Co-authored-by: a <a>

src/main/java/stirling/software/SPDF/model/ApplicationProperties.java

@@ -1,5 +1,7 @@
 package stirling.software.SPDF.model;
 
+import java.io.File;
+import java.io.FileNotFoundException;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.HttpURLConnection;
@@ -13,18 +15,23 @@ import java.util.List;
 import java.util.stream.Collectors;
 
 import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
-import org.springframework.context.annotation.PropertySource;
 import org.springframework.core.Ordered;
 import org.springframework.core.annotation.Order;
+import org.springframework.core.env.ConfigurableEnvironment;
+import org.springframework.core.env.PropertySource;
 import org.springframework.core.io.ClassPathResource;
 import org.springframework.core.io.FileSystemResource;
 import org.springframework.core.io.Resource;
+import org.springframework.core.io.support.EncodedResource;
 
 import lombok.Data;
 import lombok.Getter;
 import lombok.Setter;
 import lombok.ToString;
+import lombok.extern.slf4j.Slf4j;
+import stirling.software.SPDF.config.InstallationPathConfig;
 import stirling.software.SPDF.config.YamlPropertySourceFactory;
 import stirling.software.SPDF.model.provider.GithubProvider;
 import stirling.software.SPDF.model.provider.GoogleProvider;
@@ -33,11 +40,37 @@ import stirling.software.SPDF.model.provider.UnsupportedProviderException;
 
 @Configuration
 @ConfigurationProperties(prefix = "")
-@PropertySource(value = "file:./configs/settings.yml", factory = YamlPropertySourceFactory.class)
 @Data
 @Order(Ordered.HIGHEST_PRECEDENCE)
+@Slf4j
 public class ApplicationProperties {
 
+    @Bean
+    public PropertySource<?> dynamicYamlPropertySource(ConfigurableEnvironment environment)
+            throws IOException {
+        String configPath = InstallationPathConfig.getSettingsPath();
+        log.debug("Attempting to load settings from: " + configPath);
+
+        File file = new File(configPath);
+        if (!file.exists()) {
+            log.error("Warning: Settings file does not exist at: " + configPath);
+        }
+
+        Resource resource = new FileSystemResource(configPath);
+        if (!resource.exists()) {
+            throw new FileNotFoundException("Settings file not found at: " + configPath);
+        }
+
+        EncodedResource encodedResource = new EncodedResource(resource);
+        PropertySource<?> propertySource =
+                new YamlPropertySourceFactory().createPropertySource(null, encodedResource);
+        environment.getPropertySources().addFirst(propertySource);
+
+        log.debug("Loaded properties: " + propertySource.getSource());
+
+        return propertySource;
+    }
+
     private Legal legal = new Legal();
     private Security security = new Security();
     private System system = new System();
@@ -153,6 +186,7 @@ public class ApplicationProperties {
             }
 
             public Resource getSpCert() {
+                if (spCert == null) return null;
                 if (spCert.startsWith("classpath:")) {
                     return new ClassPathResource(spCert.substring("classpath:".length()));
                 } else {
@@ -161,6 +195,7 @@ public class ApplicationProperties {
             }
 
             public Resource getidpCert() {
+                if (idpCert == null) return null;
                 if (idpCert.startsWith("classpath:")) {
                     return new ClassPathResource(idpCert.substring("classpath:".length()));
                 } else {