fix(release): package TUI compliance materials

tui/RELINKING.md

@@ -0,0 +1,33 @@
+# Native TUI corresponding source and relinking
+
+The nanobot TUI release archive contains the executable, its complete JavaScript/TypeScript
+application source, dependency lockfile, build scripts, and third-party notices. It is built with
+Bun 1.3.13 and OpenTUI 0.5.3. See `SOURCE_OFFER.md` for the corresponding-source
+offer that accompanies the executable. The archive also contains the complete LGPL 2.0 and
+LGPL 2.1 license texts.
+
+Corresponding upstream source:
+
+- nanobot TUI: the `tui/` directory in the GitHub release tag that contains this archive
+- Bun 1.3.13 (`bf2e2cecf27e800962b1e7f03d66278f9d5d2e79`):
+  <https://github.com/oven-sh/bun/tree/bun-v1.3.13>
+- Bun's patched WebKit (`4d5e75ebd84a14edbc7ae264245dcd77fe597c10`):
+  <https://github.com/oven-sh/WebKit/tree/4d5e75ebd84a14edbc7ae264245dcd77fe597c10>
+- OpenTUI 0.5.3: <https://www.npmjs.com/package/@opentui/core/v/0.5.3>
+
+To rebuild against a modified JavaScriptCore/WebKit, first build Bun 1.3.13 from its complete
+source checkout together with the WebKit revision above by following Bun's pinned license and
+build instructions. Then unpack
+`nanobot-tui-source.tar.gz` from the release archive and run the resulting Bun executable:
+
+```bash
+cd nanobot-tui-source
+/path/to/modified/bun install --frozen-lockfile
+/path/to/modified/bun run build -- <target>
+```
+
+Supported targets are `darwin-arm64`, `darwin-x64`, `linux-arm64`, `linux-x64`, and `win32-x64`.
+The resulting executable is written to `dist/`.
+
+Questions about source availability can be reported at
+<https://github.com/HKUDS/nanobot/issues>.