feat(player): add ASR/YOLO overlays, zoom, and text rendering

- Add TTF text rendering for subtitles and YOLO labels
- Implement ASR subtitle display with background
- Add YOLO bbox rendering with class labels
- Add zoom in/out (+/-) and reset (Backquote)
- Add frame/time info display
- Fix YOLO metadata parsing for actual file format
- Add Shift+Arrow for 1-second seek

target/debug/.fingerprint/slab-e4d23bfe3e276562/invoked.timestamp

@@ -0,0 +1 @@
+This file has an mtime of when this was started.

target/debug/.fingerprint/slab-e4d23bfe3e276562/lib-slab

@@ -0,0 +1 @@
+03a7f4699a0a1692

target/debug/.fingerprint/slab-e4d23bfe3e276562/lib-slab.json

@@ -0,0 +1 @@
+{"rustc":18415816196306954164,"features":"[\"default\", \"std\"]","declared_features":"[\"default\", \"serde\", \"std\"]","target":7798044754532116308,"profile":5347358027863023418,"path":6389460705421826355,"deps":[],"local":[{"CheckDepInfo":{"dep_info":"debug/.fingerprint/slab-e4d23bfe3e276562/dep-lib-slab","checksum":false}}],"rustflags":[],"config":2069994364910194474,"compile_kind":0}