Initial commit — AmexPal statement analyser

Python/Flask backend with pdfplumber parser, Svelte 4 frontend,
Docker multi-stage build. Includes category analysis, insights,
monthly/weekly charts, subscription audit, and annualised projections.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Dockerfile

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+# ── Stage 1: Build Svelte frontend ───────────────────────────────────────────
+FROM node:20-alpine AS frontend-build
+
+WORKDIR /app/frontend
+
+COPY frontend/package.json frontend/package-lock.json ./
+RUN npm ci
+
+COPY frontend/ .
+RUN npm run build
+
+
+# ── Stage 2: Python / Flask ───────────────────────────────────────────────────
+FROM python:3.12-slim
+
+# pdfplumber needs these system libs
+RUN apt-get update && apt-get install -y --no-install-recommends \
+    libpoppler-cpp-dev \
+    && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /app
+
+COPY requirements.txt .
+RUN pip install --no-cache-dir -r requirements.txt
+
+COPY amex_parser.py amex_analyser.py app.py ./
+
+# Copy the built frontend from Stage 1
+COPY --from=frontend-build /app/frontend/dist ./frontend/dist
+
+EXPOSE 5000
+
+# Gunicorn for production (threaded, no debug mode)
+CMD ["gunicorn", "--bind", "0.0.0.0:5000", "--workers", "2", "--threads", "4", "--timeout", "120", "app:app"]