feat: move all debug keys under <leader>d prefix with which-key support

tests/test_config.lua

@@ -4,24 +4,27 @@ local config = require("tiny-debugger.config")
 -- defaults unchanged after empty merge
 local opts = config.merge({})
 assert_eq(opts.keys.continue, "c", "default continue key")
+assert_eq(opts.global_keys.toggle, "<leader>dd", "default toggle key")
+assert_eq(opts.global_keys.breakpoint, "<leader>dx", "default breakpoint key")
 assert_eq(opts.help_on_enter, true, "default help_on_enter")
-assert_eq(opts.builtin_adapters, true, "default builtin_adapters")
 
 -- partial key override
 opts = config.merge({ keys = { continue = "g" } })
 assert_eq(opts.keys.continue, "g", "overridden continue key")
 assert_eq(opts.keys.step_over, "s", "preserved step_over key")
-assert_eq(opts.keys.terminate, "q", "preserved terminate key")
 
 -- disable a key with false
 opts = config.merge({ keys = { continue = false } })
 assert_eq(opts.keys.continue, false, "disabled continue key")
-assert_eq(opts.keys.step_over, "s", "preserved step_over after disable")
 
--- override help_on_enter
-opts = config.merge({ help_on_enter = false })
-assert_eq(opts.help_on_enter, false, "overridden help_on_enter")
-assert_eq(opts.keys.continue, "c", "keys preserved after help override")
+-- global key override
+opts = config.merge({ global_keys = { toggle = "<leader>D" } })
+assert_eq(opts.global_keys.toggle, "<leader>D", "overridden toggle key")
+assert_eq(opts.global_keys.breakpoint, "<leader>dx", "preserved breakpoint key")
+
+-- disable a global key
+opts = config.merge({ global_keys = { breakpoint = false } })
+assert_eq(opts.global_keys.breakpoint, false, "disabled breakpoint key")
 
 -- merge doesn't mutate defaults
 config.merge({ keys = { continue = "z" } })