feat: switch config to JSON; add go.mod and config.json.example

- Replace Viper-based config with encoding/json (config.go)
- Add config.json with sensible defaults (gitignored)
- Add config.json.example with empty values as reference
- Initialize go module (go.mod)
- Update main.go to use LoadConfig()

1 files changed, 3 insertions, 0 deletions

diff --git a/src/go.mod b/src/go.mod
new file mode 100644
index 0000000..4a23ad9
--- /dev/null
+++ b/src/go.mod
@@ -0,0 +1,3 @@
+module hnimdbbot
+
+go 1.26.4