Add new agents and skills for enhanced project orchestration and review processes

- Introduced `critic`, an independent adversarial reviewer for security and correctness.
- Added `fable-orchestrator` to manage task routing and verification.
- Implemented `gauntlet-critic` for fresh-context evaluation of gauntlet rounds.
- Created `planner` for generating executable implementation plans with dependencies.
- Developed `security-auditor` for application security reviews and audits.
- Established `system-steward` to improve agent prompts and skills based on verified failures.
- Added `dev-loop` skill for autonomous development loops over repositories.
- Implemented `gauntlet-loop` skill for iterative quality benchmarking against reference standards.
- Updated project settings to utilize the new orchestrator agent.
- Created documentation for `GAUNTLET.md`, `PROGRESS.md`, and `REFERENCE_BAR.md` to track project status and quality benchmarks.
- Added detailed prompting style guide to enhance understanding of prompt patterns and agentic loops.

docs/REFERENCE_BAR.md

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+# Reference bar
+
+> The concrete quality bar for gauntlet work. Every entry must point at something a referee can open, run, or look at — an adjective is not a bar. Changing a bar mid-gauntlet is an owner decision recorded in `DECISIONS.md`.
+>
+> **Seeded 2026-08-06 at the gauntlet-loop/fable upgrade.** This project already has a real bar: the interactive prototype + the Nocturne token authority + per-screen contracts. **Precedence guard (D-2026-07-31-01 lineage):** the prototype is *evidence, never authority* — where the prototype and the recorded spec disagree, `08-development-spec > 04-rules > PRD` wins and the difference is **not** a gap. The referee grades against the spec-corrected prototype.
+
+Base references: `PROTO = PS Bus Ticketing App - Conductor App.html` (repo root — open in a browser, navigate to the screen) · `TOKENS = docs/06-ui-patterns.md` (Nocturne) · `SPEC = docs/08-development-spec.md` (per-screen contract) · `DESIGN = docs/design/**` (screen specs, where written).
+
+## Bars by part
+
+One row per screen/flow as it enters a gauntlet — seeded with the screens that already have design artifacts; add rows using the template as work reaches each screen. Budgets live on the `GAUNTLET.md` board.
+
+| Part | Reference artifact(s) | How to compare | Minimum parity |
+| --- | --- | --- | --- |
+| Auth screens 1–2 | PROTO auth screens · `docs/design/` auth spec · SPEC §screen criteria | run the app on the 2 GB reference device (or emulator at its profile), screenshot vs PROTO side by side; check tokens vs TOKENS | layout/hierarchy/tokens match the spec-corrected prototype; per-screen SPEC criteria pass |
+| Screen 06 — discount capture (dual-photo) | PROTO screen 06 · `docs/design/` screen-06 spec · SPEC criteria | walk the capture flow on-device; screenshot each state | every state (capture, retake, proof review) present and one-handed operable; ≥ 48 dp targets |
+| Screen 11 — printer setup | PROTO screen 11 · `docs/design/` screen-11 spec | walk pairing/test-print flow (or its no-hardware stub — see orchestrator memory: no printer hardware) | states + error paths match; no-hardware path explicit, never silent |
+| P10 — prepaid booking / QR | PROTO P10 · `docs/design/` P10 spec · SPEC criteria | walk the flow offline; screenshot | offline-first behavior + states match the spec-corrected prototype |
+| [next screen] | PROTO screen NN · `docs/design/` spec if present · SPEC criteria | on-device screenshot side-by-side + flow walk | [what must match] |
+
+Behavioral bars (not screenshots): the ≤ 20 s record-a-passenger contract (stopwatch on the reference device), 7-day-offline invariants (A-1…A-6), and the `TC-*` tables in `docs/09-test-plan.md` — these are already acceptance tests; the gauntlet adds the visual/UX parity layer on top, it does not replace them.
+
+## Reference sources
+
+- `PS Bus Ticketing App - Conductor App.html` — interactive prototype (root)
+- `docs/06-ui-patterns.md` — Nocturne tokens/components (authority for visual language)
+- `docs/design/**` — written screen specs (authority over the prototype)
+- `docs/08-development-spec.md` — per-screen acceptance criteria
+
+## Out of scope for the bar
+
+- Anything the recorded spec has changed from the prototype (spec wins; log the delta as evidence, not a gap).
+- Server/back-office UI (contract-only, `docs/07-api-contract.md`), iOS, passenger-facing surfaces.