Phase 1 of the project (minimal end-to-end pipeline) now runs cleanly
from `make compose-up` through `make phase1` to a live Streamlit
dashboard at http://localhost:8501. Real GitHub data lands in Garage S3,
flows through DuckDB bronze→silver→gold, and is visualised.

Major additions
---------------
- scripts/garage-init.sh — idempotent layout + bucket + key import.
  Fixes the "no role assigned / Quorum not available" state Garage
  ships in. Pulls GARAGE_S3_ACCESS_KEY/SECRET_KEY from env (op run).
- Makefile: `make garage-init`, `make dbt-install`, and `phase1` target
  chains compose-up → garage-init → ingest → dbt → dashboard.
- transform/requirements.txt: pin dbt-core 1.10 + dbt-duckdb 1.10.
- transform/.venv setup via `make dbt-install` (separate from
  ingestion's venv to keep dependency surfaces clean).

Pipeline fixes discovered while running for real
------------------------------------------------
1. profiles.yml.example: add `s3_region: garage` so DuckDB's S3 client
   stops sending `ap-northeast-1` to Garage and getting
   AuthorizationHeaderMalformed back.
2. read_parquet(union_by_name=true) on all three bronze stg models —
   needed because anthropics/claude-code has license=null and pyarrow
   inferred its `license_spdx` column as INTEGER while every other repo
   wrote VARCHAR. Combined with `try_cast(license_spdx as varchar)` on
   the projection.
3. Bronze stg_* models materialized as `table` (not `view`). Working
   around DuckDB v1.5 binder INTERNAL Error: when bronze is a view and
   silver does `select <many cols incl. timestamps> from {{ ref(stg_*) }}
   qualify row_number() over (... order by fetched_at desc) = 1`, the
   binder errors with "Failed to bind column reference '': inequal
   types (TIMESTAMP != VARCHAR)". Reproduced the bug in isolation; the
   triggers are (a) source = subquery/view, (b) qualify with TIMESTAMP
   ordering, (c) ≥2 TIMESTAMP columns in projection. Persisting bronze
   sidesteps the inline-binder path.
4. Silver fct_*/dim_repos rewritten with `qualify` (replaces the
   `with ranked as (select *, row_number() ...)` pattern, which also
   triggered the same binder bug even with table-bronze).
5. fct_commits: replace `cardinality(parents)` with `len(parents)`.
   `parents` is `VARCHAR[]` (a list); DuckDB's `cardinality()` is for
   MAPs. `len()` is the canonical list/array length.

Verified end-to-end run
-----------------------
- Bronze: 5 + 7,833 + 390 rows ingested from 5 OSS repos
- Silver: 5 + 7,366 + 467 + 390 rows
- Gold:   repo_health_snapshot 5 rows, repo_daily_metrics populated
- dbt:    PASS=28 ERROR=0 SKIP=0 (3 bronze + 4 silver + 2 gold + 19 tests)
- Streamlit: HTTP 200 on :8501 reading gold tables

The .gitignore now also covers `.local/`, used for personal phase
trackers. See `.local/phase-1/{plan,status,log}.md` for the running
notes (gitignored).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>