feat: add angle rotation and mirrorY horizontal flipping for components

- New angle parameter for component rotation (degrees, KiCad CCW-in-screen)
- New mirrorY parameter for horizontal symbol flipping (transistor orientation)
- Property positions (Reference, Value, Footprint) automatically rotated
- Property text effects preserved from library definitions
- Updates to add_schematic_component tool with new parameters
- Implements proper S-expression formatting for (mirror y) attribute
- Text angles and offsets derived from library properties for correct placement

src/tools/schematic.ts

@@ -55,6 +55,14 @@ export function registerSchematicTools(server: McpServer, callKicadScript: Funct
         .min(1)
         .optional()
         .describe("Unit number for multi-unit symbols (1=A, 2=B, 3=C, …). Defaults to 1."),
+      angle: z
+        .number()
+        .optional()
+        .describe("Rotation angle in degrees (KiCad CCW). 0=vertical resistor, 90=horizontal. Defaults to 0."),
+      mirrorY: z
+        .boolean()
+        .optional()
+        .describe("Mirror the symbol horizontally (flip left-right). Useful for transistors facing opposite direction."),
     },
     async (args: {
       schematicPath: string;
@@ -64,6 +72,8 @@ export function registerSchematicTools(server: McpServer, callKicadScript: Funct
       footprint?: string;
       position?: { x: number; y: number };
       unit?: number;
+      angle?: number;
+      mirrorY?: boolean;
     }) => {
       // Transform to what Python backend expects
       const [library, symbolName] = args.symbol.includes(":")
@@ -82,6 +92,8 @@ export function registerSchematicTools(server: McpServer, callKicadScript: Funct
           x: args.position?.x ?? 0,
           y: args.position?.y ?? 0,
           unit: args.unit ?? 1,
+          angle: args.angle ?? 0,
+          mirrorY: args.mirrorY ?? false,
         },
       };