Why:
- The package exposed 8 modules directly, pushing source-type dispatch and
the ADR-0017 thread-offload obligation onto every caller.
Changes:
- Add parse_and_chunk_document as the sole public entry point.
- Demote the individual parsers to internal/test-only.
Testcontainers reports the container host as `localhost`, which resolves
to ::1 before 127.0.0.1 on this machine. Docker publishes the mapped port
on IPv4 only, and the IPv6 SYN is dropped rather than refused, so asyncpg
blocked on the first address until its connect timeout instead of falling
back to the second -- the migration fixture hung rather than failing.
127.0.0.1 connects in 0.07s where localhost timed out at 15s; the
integration suite now runs in 3.6s, inside the 10s pytest-timeout.
Adds src/application/ingestion/ -- Persian normalization, DOCX body
walk with structural data/layout table classification, CSV/XLSX row
rendering, and fixed-size token chunking (cl100k_base, 400/60/512) --
as pure functions per ADR-0015, tested against real production
documents (asia_data_sample, kept out of the repo). ADR-0018 records
where this diverges from ADR-0004 (fixed-size default, no invented
headings/tree, structural table classification, header-provable
labeling only). Plan 001's scope line is corrected from CSV-only to
DOCX/XLSX/CSV, and CLAUDE.md's stale project-status paragraph is
updated to match current implementation state.
alembic/env.py previously always overwrote sqlalchemy.url from
Settings().postgres.dsn, which made it impossible for a test fixture to
point Alembic at a Testcontainers-managed database. Now env.py only
sets it when unset, and a new integration suite runs `alembic upgrade
head` against a real Postgres container per ADR-0016 (no create_all()).
