feat: hoppscotch agent and agent interceptor (#4396)

Co-authored-by: CuriousCorrelation <CuriousCorrelation@gmail.com>
Co-authored-by: jamesgeorge007 <25279263+jamesgeorge007@users.noreply.github.com>

packages/hoppscotch-agent/devenv.yaml

@@ -0,0 +1,23 @@
+# yaml-language-server: $schema=https://devenv.sh/devenv.schema.json
+inputs:
+  # For NodeJS-22 and above
+  nixpkgs:
+    url: github:NixOS/nixpkgs/nixpkgs-unstable
+  # nixpkgs:
+  #   url: github:cachix/devenv-nixpkgs/rolling
+  fenix:
+    url: github:nix-community/fenix
+    inputs:
+      nixpkgs:
+        follows: nixpkgs
+
+# If you're using non-OSS software, you can set allowUnfree to true.
+allowUnfree: true
+
+# If you're willing to use a package that's vulnerable
+# permittedInsecurePackages:
+#  - "openssl-1.1.1w"
+
+# If you have more than one devenv you can merge them
+#imports:
+# - ./backend