feat: functional gridfinity calculator app

memory-bank/activeContext.md

@@ -0,0 +1,20 @@
+# Active Context
+
+## Current Status
+- Initializing the project environment.
+- Documentation phase (Memory Bank & Blueprint).
+
+## Recent Changes
+- Created `memory-bank/projectBrief.md`.
+- Created `memory-bank/productContext.md`.
+
+## Current Focus
+- Completing Memory Bank initialization.
+- Drafting PRD and Architecture.
+- Setting up the Vite/TypeScript/Tailwind environment.
+
+## Active Decisions
+- Using **Vite** for the build tool.
+- Using **Vanilla TypeScript** to avoid framework overhead.
+- Using **Vitest** for unit testing calculation logic.
+- Target: A single-page application that can be built into a self-contained output.