feat: initial MCP server for printing markdown to Epson TM-m30

Single tool `print(markdown, title?, timestamp?, qr_urls?, cut?)`. Hand-rolled
line-by-line markdown parser translates headings/bold/code/lists/blockquotes/
HR/links to ESC/POS, then sends raw bytes via TCP to 192.168.0.184:9100.

Mirrors mcp-gemma4 layout (stdio server, single server.py, mcp package).

pyproject.toml

@@ -0,0 +1,13 @@
+[project]
+name = "mcp-pos-print"
+version = "0.1.0"
+description = "MCP server that prints markdown to the Epson TM-m30 receipt printer (192.168.0.184)."
+requires-python = ">=3.10"
+dependencies = [
+    "mcp>=1.0.0",
+    "python-escpos>=3.0",
+    "qrcode>=7.0",
+]
+
+[tool.setuptools]
+py-modules = ["server"]