- oakrender cache C API: add create_for_node (four cache kinds),
get_uuid, request, load/save_state, set_saving_enabled,
set_passthrough, get_passthroughs, get_valid_cache_filename,
get_timebase, lock/unlock, invalidate_range (rational variant),
get_native (C++ only, for the in-module PreviewAutoCacher)
- Node's four caches become owned OakRenderCache value handles; all
cache access in node.cpp/clip/viewer/traverser/serializers goes
through the C ABI
- oaknode_node_get_video_frame_cache returns an addref'd
OakRenderCache; drop OakNodeFrameCache; oaktask precache/export and
oakrender_video_ticket_params take the value handle
- color: OCIOBaseNode/OCIOLutNode hold OakColorProcessor handles
(dtors added); oakrender gains color_processor_create_transform/
create_lut/create_grading_primary/get_native and LUT library
queries, keeping all OCIO transform construction inside oakrender;
oaknode gains colormanager_wrap_borrowed/get_native
- RenderManager::instance() check -> oakrender_manager_available();
cancel_video_tasks and disk cache path go through manager C API
- remaining node->render C++ symbol: only olive::Texture::~Texture
via Variant's shared_ptr payload (recorded exception, same class as
the UndoCommand inheritance)
Tests: new cache/color/manager/colormanager cases; all standalone
trees green (common 196, codec 22, audio 40, task 112, render 63,
timeline 125, node 98, plugin 102).