Replace the hardcoded `len(name) > 80` cap in the QG-0 entry validation
(_qg0_errors) with a configurable Settings.qg0_title_max (env
ORCH_QG0_TITLE_MAX, default 200). The 80-char cap was a hygiene limit, not
structural, so valid 81-200 char titles were rejected without a business
reason. The limit is read dynamically per call and the error text interpolates
the active value.
Graceful degradation (AC-3, self-hosting safety): an empty/non-numeric env
value no longer crashes the process on startup. A field_validator(mode="before")
intercepts the raw env before int-parsing and falls back to 200 (never raises),
suppressing pydantic ValidationError.
Additive and backward-compatible (default 200 > old 80). Invariants unchanged:
STAGE_TRANSITIONS, QG_CHECKS registry, DB schema, slug [:30], lower limits,
soft-QG-0 warning path, API.
Refs: ORCH-069
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
claude-bot
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