fix(scan): fail-soft on Loomweave taint-store write errors (1.0.7)

[tachyon-beep]

Summary

A bare wardline scan auto-discovers a running Loomweave from its published ephemeral port (ADR-044) with no --loomweave-url flag. On an install without the [loomweave] extra, the opt-in taint-fact write reached require_blake3() and raised LoomweaveError, which the CLI surfaced as a hard exit 2 ("could not run — missing blake3 dep") — killing the gate (the scan's real job) over an optional side-channel's optional dependency.

Reported by a federated sibling (elspeth), whose wardline scan died in exactly this configuration.

Fix

Catch LoomweaveError around the taint-store write and degrade to a not-reachable WriteResult (reported via the existing fail-soft warning + status block), at full parity with the MCP scan tool (mcp/server.py), which already handled this. The write is best-effort enrichment; it never changes the scan's exit code. This covers the missing-extra, 4xx, and bad-scheme cases — closing the whole class, not just blake3.

• src/wardline/cli/scan.py — wrap the loomweave write; LoomweaveError → not-reachable WriteResult.
• Realigned the finding-lifecycle glossary line anchors shifted by the fix (docs/reference/finding-lifecycle-vocabulary.md + tests/docs/test_glossary_vocabulary.py).
• chore: prepare wardline 1.0.7 — bump so the fix reaches PyPI; unblocks elspeth via pip install -U wardline.

Behavior change (intentional)

An explicit --loomweave-url with a 4xx/bad-scheme/missing-extra now degrades soft (warning + completed gate) instead of exit 2. The warning prints on every --format (reporting sits outside the format branch), so it is never silent.

Tests

• test_scan_loomweave_error_is_fail_soft — replaces test_scan_loomweave_loud_error_exits_2; pins the 4xx case going soft.
• test_scan_missing_loomweave_extra_is_fail_soft_when_auto_discovered — reproduces the elspeth scenario end-to-end: real resolve_loomweave_url published-port rung + blake3 absent at its genuine call site → exit 0.
• Full suite: 4201 passed, 18 deselected; ruff + mypy clean; wardline self-gate exit 0.

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