Add runtime-configurable annotations for parameters

[Copilot]

Adds infrastructure to annotate parameters as runtime-configurable, enabling introspection of which parameters can be reloaded without restart.

Changes

• docs/parameters.yaml: Added optional runtime_configurable boolean field (defaults to false)

  • Example: Logging.Level marked as runtime_configurable: true

• generate/param_generator.go: Extended generator to read and emit runtime configurability metadata

  • Generates package-level runtimeConfigurableMap variable for O(1) lookups
  • Emits GetRuntimeConfigurable() map[string]bool function
  • Emits IsRuntimeConfigurable(paramName string) bool function
  • Adds IsRuntimeConfigurable() bool method to all param types

• param/parameters.go: Generated code with new introspection capabilities

• docs/parameters.json: Includes runtime_configurable field for documentation/web UI consumption

Usage

// Check by parameter name
if param.IsRuntimeConfigurable("Logging.Level") {
    // reload without restart
}

// Check via typed parameter
if param.Logging_Level.IsRuntimeConfigurable() {
    // reload without restart
}

// Enumerate all runtime-configurable parameters
for name, configurable := range param.GetRuntimeConfigurable() {
    if configurable {
        // handle runtime-configurable parameter
    }
}

Original prompt

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This section details on the original issue you should resolve

<issue_title>Add annotations for runtime-configurable parameters</issue_title>
<issue_description>We would like to expose a few attributes as being runtime-configurable without needing a restart.

This effort starts with adding a new boolean field to docs/parameters.yaml indicating whether the attribute can be reloaded at runtime (i.e., without restart).

This annotation should be used by the generator in generate so we can introspect whether a given attribute is configurable at runtime. This should be both a function in the interface and something where, given a string with a parameter name, whether it is configurable is returned.</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Add annotations for runtime-configurable parameters #2892

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