Problem

Plugins using COMPONENT_PRE_EXECUTE receive None for payload.context_view, making it impossible to inspect conversation history at the component lifecycle level. The field exists on ComponentPreExecutePayload but is never populated by aact().

This forces plugin authors to use GENERATION_PRE_CALL instead, which fires later in the pipeline and requires reaching into framework internals (e.g., ReactInitiator.goal) to access user input.

Reproduction

@hook(HookType.COMPONENT_PRE_EXECUTE, mode=PluginMode.SEQUENTIAL, priority=1)
async def inspect_context(payload, ctx):
    print(payload.context_view)  # None — should be a list of context items

Expected behavior

payload.context_view should contain a snapshot of the context (via context.as_list()) at the time COMPONENT_PRE_EXECUTE fires. The context parameter is available in aact() but is not forwarded to the payload.

Related

Part of #920. The tool allowlist issue is tracked separately.