## BAT v1.22 — Sequence Packing

### Highlights

**Pack entire shot sequences in one go.** Select a sequence folder, BAT finds the latest published blend files across all shots, traces and deduplicates shared dependencies, and packs everything into a single ZIP.

### New features

#### Blender addon
- **Pack Sequence operator** (`File > External Data > BAT > BAT - Pack Sequence`) — browse to a sequence folder, scan for latest published blend files, review and toggle individual shots, export to ZIP
- **Studio template system** — dropdown to select folder conventions per studio (Autour de Minuit, La Cabane Productions). Templates define where to look for published files and which task types are available
- **Progress indicator** — cursor progress bar during tracing and file transfer on all pack operators
- **Auto-named output** — ZIP filename inferred from the scanned folder name

#### CLI
- New `bat pack-sequence -t output.zip file1.blend file2.blend ...` subcommand for packing multiple blend files with unambiguous argument parsing
- Old `bat pack --sequence` still works but is deprecated

### Improvements

- Blender 5.0 compatibility fixes (DNA struct changes for nodes, modifiers, sequencer)
- Console logging for all pack operations (trace progress, asset counts, transfer status)
- ZIP write start/finish logging
- `pack-info.txt` now lists all blend files when packing a sequence

### Bug fixes

- Fixed folder matching using prefix instead of exact match (e.g. `Publish_old` could be picked over `Publish`)
- Fixed Windows UNC and drive letter path normalization in `bpathlib.make_absolute()`
- Fixed `os.path.commonpath` crash when blend files span multiple drives
- Fixed progress bar getting stuck on pack failure (missing `progress_end()` cleanup)
- Fixed ZIP error handler swallowing tracebacks
- Added per-shot error isolation in sequence scan (one broken folder no longer aborts the entire scan)
- Deduplicate blend file paths when same file appears in both positional arg and `--sequence`

### Testing

- 28 new tests for sequence packing (`tests/test_sequence_pack.py`)
- 0 regressions on existing test suite
