rework keymaps and plugin config

- Change leader from space to comma
- Move opencode keymaps into plugin config
- Move picker keymaps from <leader>p to <leader>f
- Change buffer delete mapping from bd to bk
- Add DAP debugging keymaps and dap-view
- Remove zk-nvim, checkmate plugins
- Add claude-code, conjure, scnvim plugins
- Update LSP servers: replace basedpyright with ty, add gopls/clojure_lsp/harper_ls/tinymist
- Enable inlay hints on LspAttach
- Enable go/sql/typst tree-sitter
- Add htmlhint formatter
- Configure opencode with snacks terminal

nvim-pack-lock.json

@@ -0,0 +1,8 @@
+{
+  "plugins": {
+    "scnvim": {
+      "rev": "876732590ef3f409c9705f3659fa1061db2dc7bf",
+      "src": "https://github.com/davidgranstrom/scnvim"
+    }
+  }
+}