feat(schematic): add TPS61088 5V-to-12V boost converter reference schematic

Python generator script produces a KiCad 9 schematic for the TPS61088
boost converter circuit (5V input, 12V/2A output) with feedback divider,
compensation network, bootstrap cap, and input/output filtering.
Includes a nix flake for the build environment.

flake.nix

@@ -0,0 +1,20 @@
+{
+  description = "KiCad schematic generator for TPS61088 boost converter";
+
+  inputs = {
+    nixpkgs.url = "github:NixOS/nixpkgs/nixpkgs-unstable";
+  };
+
+  outputs = { self, nixpkgs }:
+    let
+      system = "x86_64-linux";
+      pkgs = nixpkgs.legacyPackages.${system};
+    in
+    {
+      devShells.${system}.default = pkgs.mkShell {
+        buildInputs = [
+          pkgs.python313
+        ];
+      };
+    };
+}