chore: bootstrap repo scaffolding (M0.1)

Bootstraps §1.2 scaffolding (README, CONTRIBUTING, CODEOWNERS, CHANGELOG, PR + issue templates, LICENSE, CI workflow, release workflow, commitlint, cliff, .editorconfig, .gitignore, .env.example) and ships a proprietary all-rights-reserved LICENSE naming both founders.

Refs: M0.1

LICENSE

@@ -0,0 +1,24 @@
+Copyright (c) 2026 Sharang Parnerkar and Benjamin Boenisch
+All rights reserved.
+
+This source code, documentation, and all accompanying materials in this
+repository (the "Software") are the proprietary and confidential property
+of Sharang Parnerkar and Benjamin Boenisch (the "Copyright Holders").
+
+No part of the Software may be copied, reproduced, modified, merged,
+published, distributed, sublicensed, sold, or used in any form or by any
+means -- electronic, mechanical, or otherwise -- without the prior written
+permission of the Copyright Holders.
+
+Access to this repository does not constitute a license. Cloning, forking,
+or otherwise obtaining a copy of the Software does not grant any right to
+use, run, or redistribute it.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
+
+Unauthorized use, reproduction, or disclosure is strictly prohibited and
+may result in civil and/or criminal penalties under applicable law.
+
+For licensing inquiries, contact: sharang@meghsakha.com