Capture current mission, AI, map and administration development

Include the current addon, terrain integrations, tools, regression tests and recorded development evidence.

docs/single-mod.md

@@ -29,7 +29,7 @@ assets remain in their native Prefabs, Configs, Missions, Worlds, Materials and
 folders. RHS and WCS remain external dependencies, not copied assets. No Workshop
 publication or release qualification is part of this migration.
 
-The [30 September development candidate](combined-candidate-2026-09-30.md) packages the current combined source; historical five-addon handoffs remain separate.
+The [playtest build guide](playtest-build.md) identifies the latest retained, source-matched development candidate. The [30 September candidate](combined-candidate-2026-09-30.md) and historical five-addon handoffs remain earlier snapshots.
 
 ## Source and package checks
 
@@ -104,3 +104,57 @@ cleanup and unchanged authored/external inputs. The strict native verdict remain
 failed because of the four previously documented RHS/WCS localization resource
 errors, all retained in the raw log. This is local Workbench evidence, not a
 Workshop release or multiplayer qualification.
+
+## Administration: helicopter timer and server items
+
+The Mission page includes **Search helicopter delay** (1–1440 minutes), with
+Apply and Random. Saving changes a waiting countdown; an active flight
+continues. Random is saved as a selection and resolved to a positive duration.
+A failed save leaves the current countdown intact.
+
+The Mods page shows the existing mission-content switches followed by **all
+server-loaded addons**, including terrain, audio and script mods with zero
+catalogued inventory items. **Edit items** opens that mod's selection page.
+Workshop addons remain loaded; the editor controls future automatic equipment
+grants, not script execution or authored soldier inventories.
+
+The **Items** page lists registered inventory items defined or modified by each
+mod, twelve per page, with prefab paths and equipment eligibility. Items outside
+the supported automatic-equipment categories remain visible; enabling them does
+not force unsupported clothing, attachments or other assets into the equipment
+lottery. Existing content-pack exclusions also continue to apply. Modified
+vanilla items may appear under several source mods. Unregistered prefabs and
+non-inventory assets are outside this catalog.
+
+Use **Enable/Disable** on an item, or **Enable all/Disable all** for the displayed
+mod. Disable actions are red. Each item has a green **Enabled** or red
+**Disabled** badge; a mod with a mixture of allowed and blocked items shows
+**Mixed** in amber. The badge includes shared-source and current content-pack
+blocks, while the row text also explains whether that item is supported by the
+automatic equipment pool. Preset changes refresh these states from the server. Bulk actions clear that mod's individual overrides and set its default,
+including items added in later versions. An item override takes precedence over
+its own mod's default; for shared items, every loaded source mod must allow the
+item. Any source's disable wins. Controls affect future random equipment and
+matching ammunition, without removing items already issued or changing spawn
+chance. Pending grants check the selection again before issuing an item.
+
+Edits save automatically in the `items` section of `$profile:Escapists.json`. The equipment pool
+refreshes on its next selection after an edit; no restart is required. **Presets**
+cover the complete item selection across all mods. Enter a name and use
+**Save / replace**, or select an existing preset and **Load** or **Delete** it.
+Names use 1–24 lowercase letters, digits, underscores or hyphens; `active` is
+reserved. Up to 16 presets are stored. Loading replaces the working selection;
+subsequent edits do not change a saved preset until it is saved again.
+
+Missing mods disappear from the loaded-mod list. Their saved rules and preset
+entries remain dormant, without loading or resolving missing resources. If the
+same mod returns, its rules become effective again. New mods/items default to
+allowed unless their loaded source mod has a disabled default. Failed writes
+retain the previous in-memory selection; validated backup recovery and damaged
+file protection follow the other mission preference files.
+
+Discovery runs in small batches. Browsing belongs to each authenticated admin
+session; edits and presets are shared server settings. Original catalog/timer
+evidence: [2 October checks](evidence/server-items-2026-10-02/report.json).
+
+Item editor and preset validation: [native and repository checks](evidence/item-editor-2026-10-02/report.json).