feat(Fundamentals): add fundamentals service

FinlyticFundamentals/refactor.ps1

@@ -0,0 +1,16 @@
+$files = Get-ChildItem -Path "e:\Projects\Finlytic\FinlyticFundamentals" -Recurse -Include *.cs -Exclude "Migrations\*"
+
+foreach ($file in $files) {
+    $content = Get-Content $file.FullName -Raw
+    
+    # regex for logger
+    # match _logger.LogX("message", args)
+    # The tricky part is we need to match the message string correctly.
+    # $content = [regex]::Replace($content, '(_?logger\.Log(?:Information|Warning|Error))\(\s*(ex\s*,\s*)?("[^"]*")\s*(.*?)\)', {
+    #    param($match)
+    #    ...
+    # })
+    
+    # Actually, a simpler way is using a Python script via downloaded Python or just do it in powershell carefully.
+    
+}