Add license and readme

Start the kage repo: a tool that clones a website into a
self-contained folder you can browse offline, with the
JavaScript stripped out.

.gitignore

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+/bin/
+/dist/
+/kage-out/
+*.out
+.DS_Store
+
+# Built docs site (tago output) and its cache
+/docs/public/
+/docs/public-pages/
+/docs/public-cf/
+**/.tago-cache.db

.gitmodules

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+[submodule "docs/themes/tago-doks"]
+	path = docs/themes/tago-doks
+	url = https://github.com/tamnd/tago-doks

LICENSE

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+MIT License
+
+Copyright (c) 2026 Duc-Tam Nguyen
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+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 NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# kage
+
+**kage** (影, "shadow") clones a website into a self-contained folder you can
+browse offline, with all the JavaScript stripped out. It renders every page in
+headless Chrome, snapshots the final rendered DOM, removes every script and
+event handler, and downloads the CSS, images, and fonts and rewrites them to
+local paths. The result looks like the live site but runs no code: a plain
+folder of `.html` files you can open straight from disk.
+
+```bash
+kage clone example.com
+kage serve kage-out/example.com
+```
+
+## Why
+
+Saving a page with "Save As" gives you a copy that still phones home, still runs
+analytics, and often renders blank because the markup is built by JavaScript at
+runtime. kage takes the opposite approach:
+
+- **Render first, save second.** Each page goes through real headless Chrome, so
+  a page whose content is assembled by JavaScript is captured the way a human
+  would have seen it, not as an empty shell.
+- **Strip every script.** Once the DOM is captured, kage removes all `<script>`
+  tags, every `on*` event handler, and any `javascript:` URL. The saved page is
+  inert: no tracking, no network calls, no surprises.
+- **Keep the layout.** Stylesheets, images, fonts, and media are downloaded and
+  rewritten to relative local paths, so the offline copy looks like the original.
+- **Stay browsable.** In-scope links are rewritten to point at the other saved
+  pages, so you can click around the mirror exactly as you would the live site.
+
+## Install
+
+```bash
+# Go
+go install github.com/tamnd/kage/cmd/kage@latest
+
+# Homebrew (once the tap is published)
+brew install tamnd/tap/kage
+
+# Container (Chromium bundled)
+docker run -v "$PWD/out:/out" ghcr.io/tamnd/kage clone example.com
+```
+
+Prebuilt archives, `.deb`/`.rpm`/`.apk` packages, and a multi-arch image are
+attached to each [release](https://github.com/tamnd/kage/releases).
+
+kage drives a real browser, so it needs Chrome or Chromium available. It finds a
+system install automatically; point it at a specific binary with `--chrome` or
+the `KAGE_CHROME` environment variable. The container image bundles Chromium.
+
+## Usage
+
+```bash
+kage clone <url> [flags]
+kage serve [dir] [flags]
+```
+
+### Clone
+
+```bash
+# Clone a whole site into kage-out/<host>/
+kage clone https://example.com
+
+# Limit the crawl
+kage clone example.com --max-pages 200 --max-depth 3
+
+# Only a section of the site
+kage clone example.com --scope-prefix /docs
+
+# Include subdomains, and trigger lazy-loaded images by scrolling
+kage clone example.com --subdomains --scroll
+
+# Resume an interrupted run (on by default; Ctrl-C saves state)
+kage clone example.com
+```
+
+Common flags:
+
+| Flag | Default | Meaning |
+|------|---------|---------|
+| `-o, --out` | `kage-out` | Output root; the mirror lands in `<out>/<host>/` |
+| `-p, --max-pages` | `0` | Stop after N pages (0 = unlimited) |
+| `-d, --max-depth` | `0` | Link-follow depth cap (0 = unlimited) |
+| `--scope-prefix` | | Only crawl pages whose path starts with this prefix |
+| `--subdomains` | `false` | Treat subdomains of the seed host as in scope |
+| `--exclude` | | Path prefixes to skip (repeatable) |
+| `--scroll` | `false` | Auto-scroll each page to trigger lazy loading |
+| `--workers` | `4` | Concurrent page render workers |
+| `--no-robots` | `false` | Ignore `robots.txt` (be polite) |
+| `-f, --force` | `false` | Delete any existing mirror for the host first |
+| `--chrome` | | Path to the Chrome/Chromium binary |
+
+Run `kage clone --help` for the full list.
+
+### Serve
+
+`kage serve` runs a local static file server over a cloned folder so links and
+assets resolve the way they would on a real host:
+
+```bash
+kage serve kage-out/example.com
+# open http://127.0.0.1:8800
+```
+
+## How it works
+
+```
+seed URL ─▶ headless Chrome ─▶ final DOM ─▶ strip JS ─▶ localise assets ─▶ disk
+              (render)          (snapshot)   (sanitize)   (rewrite links)
+```
+
+A clone is a polite breadth-first crawl. Pages are rendered by a pool of Chrome
+tabs; assets are fetched over plain HTTP by a separate worker pool. Every URL
+maps deterministically to a local path, so links can be rewritten before the
+asset they point at has even finished downloading. The crawl honours
+`robots.txt` and seeds itself from `sitemap.xml` by default. Output layout:
+
+```
+kage-out/example.com/
+├── index.html                 # the home page, scripts stripped
+├── about/index.html           # /about
+├── _kage/                      # reserved: assets and crawl state
+│   ├── example.com/site.css    # localised stylesheet (url() rewritten)
+│   ├── example.com/logo.png
+│   └── state.json              # visited set, for --resume
+└── ...
+```
+
+## Building from source
+
+```bash
+git clone https://github.com/tamnd/kage
+cd kage
+make build          # -> bin/kage
+make test           # full suite, including Chrome-driven end-to-end tests
+make test-short     # skip the tests that launch a browser
+```
+
+## License
+
+MIT. See [LICENSE](LICENSE).