Add PAPER WINDOW as the starter scenario Adventure

The six-player introductory case ships as a Foundry Adventure in a new `starter` pack,
because a scenario that arrives as nine loose documents a GM has to assemble is a
scenario that gets read rather than run.

One import brings in: the GM scenario in twelve pages; the seven player handouts as
their own journal at OBSERVER ownership so they can be revealed one at a time without
the GM editing permissions first, while the GM text stays hidden; the six pregens built
through the same buildActor path the shipped pregens use, so they arrive with full skill
lists, kit, hit points and linked tokens; the cast, including the Cancellation Man; the
Borrowed Authority as a real credential with scope, Trust 2 and its three red flags; and
the case file already at Containment 8 / Resources 8 / Clearance 6 with its four phases
loaded at the stated difficulties and modifiers.

Pregen ratings are fixed at mid-band rather than rolled — a pregen that varies between
installs is not a pregen. The expansion from posting or trade into a sheet reuses the
register and the induction rule rather than restating them, so the starter cannot drift
from the generator.

Verified by importing it: no errors, the roster resolves through stable keys, handouts
arrive player-visible, Nia has the team's highest Tradecraft as the text requires,
Callum's shield is slung so raising it is still a decision, the three probationers show
the trade/induction split, and phase one runs out of the box.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

docs/REVIEW_LOG.md

@@ -4901,3 +4901,43 @@ should sit *above* executable evidence rather than instead of it. Every numbered
 that can be reproduced without a browser now has a test. Those that cannot — anything
 inside the generators, the sheets or the contact engine — are named in the test file's
 header as out of its reach, so the suite does not look more complete than it is.
+
+## PAPER WINDOW — the starter scenario, as a Foundry Adventure
+
+Codex's six-player introductory case is now in the system as an importable scenario
+module. **Adventure**, not a journal: a scenario that arrives as nine loose documents a
+GM has to assemble is a scenario that gets read rather than run.
+
+`ringbrp.starter` contains one Adventure holding:
+
+* the **GM scenario** in twelve pages, in running order;
+* the **seven player handouts** as their own journal at ownership OBSERVER, so they can
+  be revealed one at a time without the GM changing permissions on seven pages before
+  the session — the GM journal stays hidden;
+* the **six pregens**, built through the same `buildActor` path the shipped pregens
+  use, so they arrive with full skill lists, kit, hit points and linked tokens;
+* the **cast** — Evelyn Vale, both Lorna Vales, Gareth Moss and the Cancellation Man —
+  as statblocks a GM can drag onto a scene;
+* the **Borrowed Authority** as a real credential item with scope, Trust 2 and its three
+  red flags, rather than a paragraph in the brief;
+* the **case file** already at Containment 8, Resources 8, Clearance 6 with its four
+  phases loaded at the scenario's stated difficulties and modifiers.
+
+**The pregens are fixed, not rolled.** Ratings sit at the middle of each band rather
+than being generated, because a pregen that varies between installs is not a pregen and
+six tables running the starter should see the same six agents. Verified after a live
+import: Nia carries the team's highest Tradecraft at 53 as the text requires, Callum's
+riot shield is **slung** so raising it is still the player's decision, and the three
+probationers show the trade/induction split the scenario is built to teach — Elin
+Medicine 58 against an induction of 26, Owen Electronics 58, Sennen Sleight of Hand 58.
+
+The expansion from a posting or trade into a full sheet reuses the register and the
+induction rule rather than restating either, so the pregens cannot drift from the
+generator: change `TRADE_BANDS` and the starter's doctor changes with it.
+
+**Verified by importing it rather than by building it.** The pack builds, the Adventure
+is well formed, the import completes with no errors, the case roster resolves through
+stable keys after import (raw ids do not survive one), the handouts come in
+player-visible and the GM text does not, and **phase one runs straight out of the box** —
+Nia leading the cordon on Tradecraft 53. Then everything imported was deleted again,
+which the pack does not notice.