Instructions and starter identity are now files in defaults/ that
get installed to data_dir by `poc-memory init`. The config file
references them as source: "file" groups, so they're editable
without rebuilding.
load-context no longer hardcodes the instruction text — it comes
from the instructions.md file in data_dir, which is just another
context group.
New user setup path:
cargo install --path .
poc-memory init
# edit ~/.config/poc-memory/config.jsonl
# start a Claude session
Co-Authored-By: ProofOfConcept <poc@bcachefs.org>
