docs(windows): add Leptos troubleshooting guide (Git Bash + OpenSSL)

.gitignore

@@ -11,6 +11,7 @@ src-tauri/*.bak
 # Node
 node_modules/
 pnpm-lock.yaml
+package-lock.json
 
 # MSVC
 *.pdb

win_leptos_fix.md

@@ -0,0 +1,28 @@
+## Leptos install issue in windows
+
+### Problem 1: Git Bash and Perl conflict
+
+If you installed Git Bash terminal on Windows. The issue is that Git Bash ships with its own `perl.exe`, which interferes with the build process for `cargo-leptos`.
+
+**Fix:**
+
+* Install Strawberry Perl separately
+* Add its `/bin` directory to your system PATH
+* Make sure Strawberry Perl comes **before** Git Bash in PATH priority
+* Use PowerShell (or another terminal) instead of Git Bash for installation so the perl you installed seperately takes priority
+
+**Note:** The installation is time heavy by default. leptos installation can take upto 40 minutes 
+
+
+### Problem 2: OpenSSL setup on Windows
+
+The Rust API guide explains OpenSSL setup for Linux and macOS, but skips Windows entirely.
+
+**Fix:**
+
+* Download and install OpenSSL from [Shining Light Productions (MSI installer)](https://slproweb.com/products/Win32OpenSSL.html)
+* During setup, select: “The OpenSSL binaries (/bin) directory”
+* Add this to PATH:
+  `C:\OpenSSL-Win64\bin`
+* Create an environment variable:
+  `OPENSSL_DIR = C:\OpenSSL-Win64`