docs: move acceptance-criteria evidence out of the spec document

The 0.10 spec is the project owner's requirements document, not a place
for an implementer's verification narrative. Move the per-criterion
evidence added for the ten ticked boxes into the implementation notes
as a new section 8, leaving the spec's Acceptance Criteria section as
just the ten checkboxes. While moving it, make explicit that criterion
2's evidence (server-authoritative travel timing) is inference over a
generic TravelService test plus this connection's seed values, not a
test exercising the Burned Road to Watchpost leg directly.

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

docs/playable-slices/0.10-Abandoned-Watchpost.md

@@ -237,75 +237,6 @@ Graufurt
 - [x] Existing merchant/reputation loop continues to work.
 - [x] All player-facing content is English.
 
-### Verification status
-
-Every criterion above is supported by evidence from the automated test suite,
-the build, or the seeded content itself — no criterion here needed the
-running app to confirm structurally:
-
-1. **Full playable location** — seeded as an `OUTPOST` with four points of
-   interest (hunt, investigate, search, map-out) and its own encounter pool
-   (`vertical-slice.seed.spec.ts`: "seeds the watchpost as a huntable
-   outpost"); local content in `local-location.content.ts`.
-2. **Server-authoritative travel** — the Burned Road ↔ Watchpost connection
-   is seeded both ways at 15 s / 10 % ambush (`"connects the burned road and
-   the watchpost both ways without a gate"`); `TravelService` computes
-   `arrivesAt` server-side and is covered generically by
-   `travel.service.spec.ts`.
-3. **Stronger, distinct pool** — `"gives the watchpost its own encounter
-   pool"` seeds exactly Road Bandit, Raider Scout, Raider Veteran, Burned
-   Hound and the rare Raider Captain; `"marks only the captain as a rare
-   encounter"` confirms the rarity split.
-4. **An enemy combining learned mechanics** — the Raider Veteran carries both
-   `telegraph` (existing, from the Burned Road) and the new `guard`
-   (`"arms the veteran with a telegraph and a guard on different
-   cadences"`); the priority between them is covered in
-   `combat-engine.service.spec.ts`.
-5. **Both bag categories matter** — Scorched Hide is seeded `HIDE`, Raider
-   Warband Mark is seeded `RAIDER_TROPHY`
-   (`vertical-slice.seed.spec.ts`), and both categories were already
-   load-bearing bag mechanics before this slice (Slice 0.7.5/0.9).
-6. **Tier-1 equipment improved** — the Raider Veteran's own loot table adds
-   Plunderer Gloves, Reinforced Leather Jacket and Watchman's Leggings on top
-   of the Raider Warband Mark, and the Raider Scout carries Bandit Hood at a
-   raised chance (`item-content.ts`); the Road Bandit's own table (already
-   present) is left untouched at the same values
-   (`"leaves the road bandit loot table untouched"` pins Bandit Blade at
-   `0.1800`), so the Watchpost's gear opportunities are additive, not a
-   rebalance of the Burned Road.
-7. **Investigation points to the Ash Pit** — the `inspect-watchpost` hotspot
-   carries the §8 clue text verbatim and `discoversLocationKey: 'ash-pit'`
-   (`"points the watchpost investigation at the ash pit"`).
-8. **Ash Pit discoverable without a level gate** — the gate is
-   `requiresDiscovery`, not `minRecommendedLevel`; `WorldDiscoveryService`
-   contains no level check at all. Covered end to end: the hotspot writes the
-   discovery (`local-location-interaction.spec.ts`: `"discovers the route the
-   hotspot points at"`), the map hides/reveals it
-   (`world.service.spec.ts`: `"hides a gated connection until the character
-   has discovered it"` / `"shows a gated connection once it has been
-   discovered"`), and travel itself refuses/allows it
-   (`world-discovery.service.spec.ts` and `travel.service.spec.ts`, both:
-   `"refuses a gated route the character has not discovered"` /
-   `"allows a gated route once it has been discovered"`).
-9. **Merchant/reputation loop continues** — both new trade goods have
-   exchange rules paying Silver and regional reputation, and pay more than
-   their Burned Road equivalents (`"lets Borin buy both watchpost trade
-   goods"`, `"pays more for watchpost goods than for road goods"`). No new
-   code path grants Silver, reputation or Renown directly from a kill; the
-   pack-wide rule (README.md) that only the exchange grants those was already
-   enforced before this slice and nothing in Slice 0.10 bypasses it.
-10. **English content** — every string seeded for the Watchpost and Ash Pit
-    (descriptions, hotspot titles and result text, monster flavour text) was
-    read during this review and is English.
-
-What this status does **not** cover, because it cannot be produced by static
-evidence: actually applying migration `1798000000000` to a real PostgreSQL
-database, confirming the second `db:seed` run is idempotent against real
-constraints, and a hand-played pass through the loop in a browser. Those are
-listed precisely in the implementation notes
-(`0.10-Abandoned-Watchpost-implementation-notes.md`, §7) as outstanding work
-for the project owner.
-
 ---
 
 ## 13. Out of Scope