add package: pyproject + src

async IMAP one-time-code retrieval consolidated from 5 forks. three
injected layers: auth (PasswordAuth/OAuth2Auth XOAUTH2), client
(IMAPClient connect/retry/folders/search/fetch/mark_seen), retrieve
(retrieve_otp newest-first with sender/subject/code matching via
substring/regex/callable). config-free, emit-only logging. optional
[oauth] extra adds aiohttp refresh-token providers (Microsoft/Google).

fixed vs forks: dropped nonexistent uid_fetch/uid_store for aioimaplib's
uid() dispatcher, xoauth2 token now bytes, guarded XOAUTH2 fallback,
use_uid decoupled from use_ssl. src/ multi-module, hatchling.

Signed-off-by: disqualifier <dev@disqualifier.me>

pyproject.toml

@@ -0,0 +1,19 @@
+[build-system]
+requires = ["hatchling"]
+build-backend = "hatchling.build"
+
+[project]
+name = "aiomail"
+version = "0.1.0"
+description = "async IMAP one-time-code retrieval with password/OAuth2 auth and dynamic matching"
+requires-python = ">=3.10"
+dependencies = [
+    "aioimaplib>=1.0",
+    "beautifulsoup4>=4.11",
+]
+
+[project.optional-dependencies]
+oauth = ["aiohttp>=3.9"]
+
+[tool.hatch.build.targets.wheel]
+packages = ["src/aiomail"]