Add configuration file support with organization list

- Create config package with JSON parsing support
- Define Organization struct with host and name
- Add config file auto-detection in common locations
- Add --config/-c flag for custom config path
- Add --list-orgs flag to display configured organizations
- Create example configuration file
- Add comprehensive .gitignore

Configuration supports multiple git organizations for future sync functionality.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/gitsyncer.example.json b/gitsyncer.example.json
new file mode 100644
index 0000000..3170286
--- /dev/null
+++ b/gitsyncer.example.json
@@ -0,0 +1,12 @@
+{
+  "organizations": [
+    {
+      "host": "git@codeberg.org",
+      "name": "snonux"
+    },
+    {
+      "host": "git@github.com",
+      "name": "snonux"
+    }
+  ]
+}
\ No newline at end of file