Add explicit mention of non-darwin platforms in release-assets-config.json.

Author: josh-padnick

.github/assets/README.md

@@ -0,0 +1,25 @@
+# GitHub Assets
+
+This directory contains configuration files used in the release and CI/CD workflows.
+
+## Files
+
+### `release-assets-config.json`
+
+Configuration file that defines the release asset matrix for the runbooks binary. It specifies:
+
+- **Platforms**: The target OS/architecture combinations, including which ones require code signing.
+
+- **Archive Formats**: The compression formats used for distribution (e.g. `zip`, `tar.gz`)
+
+- **Additional Files**: Extra files included in releases (e.g., `SHA256SUMS` for checksum verification)
+
+> **Note:** As of Dec 1, 20225, this config is only consumed by the macOS signing workflow (`sign-macos.yml`) to determine which binaries need signing. The build matrix in `release.yml` is maintained separately.
+
+### `.gon_xxx.hcl`
+
+[Gon](https://github.com/mitchellh/gon) configuration file for signing and notarizing the **macOS ARM64** (Apple Silicon) binary. Gon is a tool that automates the Apple code signing and notarization process required for distributing macOS binaries outside the App Store.
+
+## Related
+
+The [lib-release-config.sh](/.github/scripts/release/lib-release-config.sh) script consumes the `release-assets-config.json` file.

.github/assets/release-assets-config.json

@@ -11,6 +11,36 @@
       "arch": "arm64",
       "binary": "runbooks_darwin_arm64",
       "signed": true
+    },
+    {
+      "os": "linux",
+      "arch": "386",
+      "signed": false,
+      "binary": "runbooks_linux_386"
+    },
+    {
+      "os": "linux",
+      "arch": "amd64",
+      "signed": false,
+      "binary": "runbooks_linux_amd64"
+    },
+    {
+      "os": "linux",
+      "arch": "arm64",
+      "signed": false,
+      "binary": "runbooks_linux_arm64"
+    },
+    {
+      "os": "windows",
+      "arch": "386",
+      "signed": false,
+      "binary": "runbooks_windows_386.exe"
+    },
+    {
+      "os": "windows",
+      "arch": "amd64",
+      "signed": false,
+      "binary": "runbooks_windows_amd64.exe"
     }
   ],
   "archive_formats": [