fix: bug-fix sweep across node, audio, render, plugin subsystems

Node core:
- MathNode/TrigonometryNode combo strings realigned with Operation enums
- mathbase scalar/vector operand pick no longer uses bitwise type checks
- NodeSetPositionAndDependenciesRecursively moves dependencies again
- RemoveAllKeyframes undo actually restores keyframes
- NodeGroup GetInputName null-deref guard, passthrough ids use input id
- NodeValueTable::Has is an exact type match; tag fallback only for
  empty tags; kStrCombo/kPushButton get data type names
- delete_all_keyframes no longer loops forever on unparented keyframes;
  keyframe-load failures propagate; rational interpolation falls back to
  double; OpacityEffect no longer leaks its internal MathNode

Audio/footage:
- AudioVisualWaveform: GetSummaryFromTime underflow OOB read, TrimIn
  prepend length bookkeeping, OverwriteSums source channel indexing
- PanNode inserts the pan value into the sample job (keyframed pan
  works); OutputParamsChanged is emitted on device change; PortAudio
  device indices are validated before Pa_GetDeviceInfo
- Footage: AdjustTimeByLoopMode no longer hangs/UBs on degenerate
  lengths, GetStreamIndex bounds-checked, CheckFootage clears stale
  state on missing files, failed probes are not cached,
  FootageDescription::Load requires its own root element

Render/track:
- ViewerOutput pushes the tagged samples value; TrackList disconnects
  the track-height lambda; GetTrackFromReference validity check
- RenderManager dummy backend: null-initialized threads, guarded
  decoder-cache/timer paths; Renderer::Destroy releases color cache
  shaders/textures; unknown dynamic backends no longer alias to oakgl
- SharedMemoryRegion POSIX attach validates segment size; ReadMessage
  skips blank lines instead of failing; GC counter clamped;
  IsRenderingCustomRange implemented; TimeOffsetNode gets a true
  inverse OutputTimeAdjustment; zero-speed clips return the held frame

Plugin/nodes:
- OliveClip: stored default region of definition is honored, on-demand
  images are cached; OliveHost sets host identity properties and logs
  instead of showing modal dialogs offscreen; Plugin.h dead decls gone
- DespillNode guards graph-less use with Rec.709 fallback; description
  typos fixed (despill, swirl); mosaic applies when only one axis
  matches; Windows-only Project filename separator test fixed

tests/gtest/node_group_test.cpp

@@ -129,15 +129,12 @@ TEST_F(NodeGroupTest, AddInputPassthroughGeneratesUniqueIdForDuplicateInputId)
 	EXPECT_EQ(id_a, olive::MathNode::kParamAIn);
 
 	// A second passthrough of the same input ID (on a different node) must
-	// not collide with the first
-	math_b->Retranslate();
+	// not collide with the first; the suffix is derived from the input ID
 	const QString id_b = group->AddInputPassthrough(
 		olive::NodeInput(math_b, olive::MathNode::kParamAIn));
 
-	// NOTE: the suffix is derived from the input's display name rather than
-	// its ID, so a retranslated MathNode param becomes "Value_2"
 	EXPECT_NE(id_a, id_b);
-	EXPECT_EQ(id_b, QStringLiteral("Value_2"));
+	EXPECT_EQ(id_b, QStringLiteral("param_a_in_2"));
 
 	ASSERT_EQ(group->GetInputPassthroughs().size(), 2);
 	EXPECT_TRUE(group->HasInputWithID(id_b));