feat(glossary): add optional paths.glossary standing-reading slot

Pins canonical nomenclature per project so terminology does not drift
and LLM-driven work reuses the established term instead of coining a
synonym each session. The glossary rides the existing standing-reading
mechanism — one optional path slot, no new delivery path.

Single-sourcing, to avoid cross-doc drift:
- `paths.glossary` row in profile-schema.md owns the "set => standing
  reading for every role; unset => no-op" semantics; agent-template.md
  and pipeline.md each carry one referencing sentence, not a restatement.
- glossary-convention.md owns the format (flat per-term blocks: canonical
  heading + Avoid line + <=2-sentence definition) and the boss
  record-reality-never-invent write-rule; boss/SKILL.md only points to it.
- glossary.md dogfoods the format on the plugin's own vocabulary
  (cycle, milestone, iteration, drift, hard-gate).

Write authority: user any time; boss autonomously but only to record
terms already in consistent use or to settle a drift it just resolved —
never to coin. All other roles are read-only consumers.

No executable surface; this repo has no test runner, so each task closed
on a grep presence-assertion against the file it touched. All eight gates
green (T1 3>=3, T2 5, T3 2, T4 1, T5 1, T6 1, T7 2, final sweep present).

Implements docs/specs/2026-05-31-glossary-integration-design.md.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

docs/profile-schema.md

@@ -11,6 +11,7 @@ lowercase snake_case. Lists are YAML sequences.
 |---------------------|--------|------------------------|-------------|
 | `spec_dir`          | string | `docs/specs`           | Where the brainstorm skill writes specs. |
 | `plan_dir`          | string | `docs/plans`           | Where the planner skill writes plans. |
+| `glossary`          | string | (unset)                | Canonical-nomenclature file (optional). If set, it is standing reading for every role — no separate `standing_reading.always` entry is needed; unset is a documented no-op. See `glossary-convention.md`. |
 | `design_ledger`     | string | `design/INDEX.md`      | Canonical specification index (optional — projects without a design ledger can omit). |
 | `design_contracts`  | string | `design/contracts`     | Directory of prose-authoritative contracts (optional). |
 | `design_models`     | string | `design/models`        | Directory of onboarding whitepapers (optional). |
@@ -151,6 +152,10 @@ Entries may be shell commands as well as file paths — they are
 read as opaque strings the agent should fetch / execute, e.g.
 `"git log -10 --format=full"`.
 
+A set `paths.glossary` is implicitly appended to every role's
+`always` list — it does not need its own entry here. The slot's
+authoritative semantics live at the `paths` row above.
+
 ## `git`
 
 | Key                          | Type | Default | Description |