Task: todo 17 – news-cli replay harness + news-server --dry-run
Date: 2026-09-01

Verification commands
---------------------

1. Workspace tests
   $ cargo test --workspace --no-fail-fast
   Result: passed (75 tests total)
   - news-cli integration tests: 2 passed
   - news-core: 18 passed
   - news-ingest: 4 passed
   - news-server: 29 passed (existing 26 + 3 new dry-run isolation tests)
   - news-store: 22 passed

2. Formatting
   $ cargo fmt --all --check
   Result: clean

3. Clippy
   $ cargo clippy --workspace --all-targets -- -D warnings
   Result: clean

4. Replay determinism
   $ cargo run -p news-cli -- replay crates/news-cli/tests/fixtures/sample-week/
   Ran twice; outputs were byte-identical.

5. Replay output (single run)
   TITLE                                          IMP       REL    RELPCT  DECISION
   Global summit yields historic trade pact     2.400     2.742    94.444  Notify
   Major trade deal signed at summit            2.400     2.321    83.333  Digest
   Celebrity gossip roundup for the week        2.000      -inf     5.556  Suppress:BelowThreshold
   Coastal storm forces evacuations             2.400     0.825    50.000  Suppress:BelowThreshold
   Election officials certify final results     2.400     1.368    61.111  Suppress:BelowThreshold
   Election winners confirmed by officials      2.400     1.434    72.222  Suppress:BelowThreshold
   Local bakery wins pie contest                2.000     0.000    16.667  Suppress:BelowThreshold
   Storm shutters coast ahead of landfall       2.400     0.773    38.889  Suppress:BelowThreshold
   Storm watch issued for mountain region       2.000     0.771    27.778  Suppress:BelowThreshold
   Exit code: 0

6. Server dry-run live QA (local HTTP fixtures)
   Served crates/news-cli/tests/fixtures/sample-week/ on 127.0.0.1:8765.
   Config at /tmp/news-qa-config.toml pointed the three sources at localhost.
   $ NEWS_CONFIG_PATH=/tmp/news-qa-config.toml NEWS_DB_PATH=sqlite::memory: \
     cargo run -p news-server -- --dry-run --once
   Result: exit 0, printed decision lines, no ntfy calls.
   Sample output:
   Election officials certify final results     2.400     0.689    16.667  Suppress:BelowThreshold
   Major trade deal signed at summit            2.400     1.187    83.333  Digest
   Coastal storm forces evacuations             2.400     0.730    50.000  Suppress:BelowThreshold
   Storm shutters coast ahead of landfall       2.400     0.710    16.667  Suppress:BelowThreshold
   Global summit yields historic trade pact     2.400     1.419    83.333  Digest
   Election winners confirmed by officials      2.400     0.745    50.000  Suppress:BelowThreshold
   Local bakery wins pie contest                2.000     0.000    50.000  Suppress:BelowThreshold
   Celebrity gossip roundup for the week        2.000      -inf    16.667  Suppress:BelowThreshold
   Storm watch issued for mountain region       2.000     0.771    83.333  Digest

Isolation tests added
---------------------
- gate::dry_run_notify_row_does_not_suppress_real_evaluation
- gate::dry_run_bypass_rows_do_not_count_toward_ceiling
- notify::digest::dry_run_digest_row_does_not_suppress_real_digest

Files changed
-------------
- crates/news-server/src/gate.rs
- crates/news-server/src/notify/digest.rs
- crates/news-server/src/format.rs (new shared formatter)
- crates/news-server/src/lib.rs (export formatter)
- crates/news-server/src/main.rs (rewritten)
- crates/news-ingest/src/lib.rs
- crates/news-ingest/src/rss_atom.rs
- crates/news-ingest/src/news_sitemap.rs
- crates/news-cli/src/main.rs
- crates/news-cli/src/replay.rs (new)
- crates/news-cli/tests/replay.rs (new integration test)
- crates/news-cli/tests/fixtures/sample-week/* (new fixtures)
- Cargo.toml
- crates/news-server/Cargo.toml
- crates/news-cli/Cargo.toml