Stage-5 grounding audit: land the scope charter before spawning any agent ...

Operator directed a full reconciliation + grounding committee from a fresh
session before Stage 5 opens, running autonomously while they are away, with
rulings QUEUED not adopted (GA-R5).

This commit lands the charter FIRST so a session that dies mid-run still
leaves the plan behind. It fixes up front: the three deliverables (ordered
readiness checklist / committee record / GA-R5-shaped queued rulings), the
seven read-only lenses, the GA-F06 bound on the record-integrity lens
(record-churn is this project's measured failure mode -- a defect is only a
finding if it changes a Stage-5 decision or contradicts a RULED decision),
the mechanical-vs-ruling discriminator (does the fix require a choice?), and
the subagent contract (read-only; a denied call is UNMEASURED with its exact
command, never folded into a negative finding).

Section 6 records the session permission posture. The operator offered a
broad exception; a SCOPED READ-ONLY expansion was taken instead -- the task
is read-only by construction and the ask rules ARE the enforcement of hard
rule 3. Design: allow enumerates READ verbs, ask enumerates MUTATING verbs,
anything matching neither falls through and FAILS SAFE as UNMEASURED. The
settings file itself is gitignored, so section 6 is its only durable record;
the block is removed at session close.

Revert: git revert this commit (the file is new and nothing references it yet).

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01HvCyrwvYTTcDYnRErfMsNf