Initial commit: docx-review-changes pipx-installable CLI

Package the tracked-changes/comments extractor as a proper Python
package with a console_scripts entry point so it can be installed
via pipx.

README.md

@@ -0,0 +1,66 @@
+# docx-review-changes
+
+Extract all tracked changes (insertions, deletions, substitutions) and comments
+from a Microsoft Word `.docx` file and print them as readable, paragraph-numbered
+text — useful for reviewing edits without opening Word.
+
+## Install
+
+Requires Python 3.9+ and [pipx](https://pipx.pypa.io/).
+
+```sh
+pipx install git+https://gitea.reground.org/will/docx-review-changes.git
+```
+
+To upgrade to the latest version later:
+
+```sh
+pipx install --force git+https://gitea.reground.org/will/docx-review-changes.git
+```
+
+No external dependencies — the tool only uses the Python standard library.
+
+## Usage
+
+```sh
+docx-review-changes yourfile.docx
+```
+
+Each tracked change or comment is printed as a numbered entry with the
+paragraph number, author, and surrounding context. Example output:
+
+```
+────────────────────────────────────────────────────────────
+[1]  CHANGE  —  paragraph 3  —  Jane Doe
+
+  Delete  : "quick"
+  Insert  : "fast"
+  Context : The …[^^^] brown fox jumps over the lazy dog…
+
+────────────────────────────────────────────────────────────
+[2]  COMMENT  —  paragraph 5  —  John Smith
+
+  Highlighted : "lazy dog"
+  Comment     : "Can we rename this?"
+  Context     : …jumps over the [^^^]
+
+────────────────────────────────────────────────────────────
+Total: 2 item(s)
+```
+
+- **CHANGE** — a deletion immediately followed by an insertion from the same
+  author is treated as one substitution.
+- **DELETION** / **INSERTION** — standalone tracked changes.
+- **COMMENT** — a comment anchored to highlighted text, with the comment body.
+- `[^^^]` in the `Context` line marks where the change/comment sits relative
+  to the surrounding paragraph text.
+
+If the document has no tracked changes or comments, the tool prints
+`No tracked changes or comments found.`
+
+## How it works
+
+`.docx` files are zip archives containing OOXML. This tool reads
+`word/document.xml` (paragraphs, `w:ins`/`w:del` tracked-change markup, and
+comment anchors) and `word/comments.xml` (comment bodies) directly via
+`zipfile` and `xml.etree.ElementTree` — no third-party libraries required.