docs(wiki): add Collections addon page (#1081)

New wiki/Collections.md in the style of the other addon pages (lists, status,
categories, adding/bulk-adding places, place detail, filters + bulk actions,
fusion sharing with member roles, dashboard widget). Add it to the Addons
overview table + the sidebar navigation.

wiki/Addons-Overview.md

@@ -22,6 +22,7 @@ The following addons are registered in the system (defined in `server/src/db/see
 | `atlas` | global | Interactive world map showing countries and regions you have visited, plus a bucket list. See [Atlas](Atlas). |
 | `collab` | trip | Notes, polls, and live chat for trip collaboration. See [Real-Time-Collaboration](Real-Time-Collaboration). |
 | `journey` | global | Trip tracking and travel journal — check-ins, photos, and daily stories. See [Journey-Journal](Journey-Journal). |
+| `collections` | global | A personal, server-wide library of saved places in named lists, with idea/want/visited status, categories, and fusion sharing with per-member roles. See [Collections](Collections). |
 | `naver_list_import` | trip | Import places from shared Naver Maps lists directly into a trip. |
 
 

wiki/Collections.md

@@ -0,0 +1,81 @@
+# Collections
+
+Collections is a personal, server-wide library of saved places that lives outside of any single trip. Keep multiple named lists of places you have discovered — a "Norway road trip" wishlist, "Best coffee in Lisbon", "Someday" — each with a want-to-go / visited status, and share a list with other users.
+
+> **Admin:** enable Collections in [Admin-Addons](Admin-Addons).
+
+<!-- TODO: screenshot: the /collections page with the lists rail, a list hero and the places -->
+
+![Collections](assets/Collections.png)
+
+## What Collections is
+
+A place you save to a trip only exists inside that trip. Collections is the opposite: a place library that belongs to *you*, independent of any trip, so a spot you find while planning one trip is still there for the next one. Places are copied into and out of trips (never linked), so editing a saved place never changes a trip and vice versa.
+
+## Accessing Collections
+
+When the admin has enabled the addon, a **Collections** entry appears in the main navigation (and a bottom-tab on mobile). Opening it shows your lists on the left, the active list's places in the middle, and a map on the right.
+
+The dashboard also gains a **Collections widget** that surfaces your lists as compact badges. Each user can hide that widget from their own dashboard under [Display Settings](Display-Settings) without affecting anyone else.
+
+## Lists
+
+- **Create a list** from the "New list" action in the rail. A list has a name, a colour, an optional cover image (upload your own or search Unsplash), a description and a set of links.
+- **Edit or delete a list** from the **Edit** button in the list's hero (owner only). Deleting a list removes its saved places.
+- **All saved** is a built-in view that unions the places from every list you own or co-own, so you can search and act across your whole library at once.
+
+## Place status
+
+Every saved place carries a status you can cycle with one tap:
+
+- **Idea** — something you noted but haven't committed to.
+- **Want to go** — on the shortlist.
+- **Visited** — been there.
+
+Status is a Collections concept and is not carried into a trip when you copy a place.
+
+## Categories
+
+Places can be assigned a **category** from the same admin-defined set used across TREK (see [Admin: Categories](Admin-Categories)). Category colours and icons show on the place avatar, the place detail and the list rows, and you can filter a list by category.
+
+## Adding places
+
+- **Search and add** — the "+" action opens a search; pick a result and set the name, category, status, a markdown description and links before saving, all in one step.
+- **Save from a trip** — the place inspector and the trip place context menu both offer **Save to collection**, which toggles that place in or out of each of your lists.
+- **Bulk-add from a trip** — in the trip place list, enter select mode, tick several places, and use the **Save to collection** action in the selection bar to copy them all into a chosen list at once. Duplicates (by name or coordinates) are skipped automatically.
+
+## Place detail
+
+Clicking a saved place opens a detail sheet showing a cover photo (fetched automatically when the place has none of its own), its category, a live status control, a markdown description, and links. From there you can edit the place, **copy it into a trip**, or remove it from the list.
+
+## Filtering and bulk actions
+
+Above the places sit two compact filters — by **status** and by **category** — plus a **Select** toggle. In select mode you can:
+
+- **Select all** the currently filtered places.
+- **Copy to trip** — copies the selected places into any of your trips (carrying their name, description, category, notes, price, coordinates, photo and tags).
+- **Move** or **Duplicate** the selection into another of your lists.
+- **Delete** the selection.
+
+## Sharing a list (fusion)
+
+Lists are private by default. The owner can **share** a list by inviting other users, similar to Vacay fusion. Invited users see the list once they accept, and changes sync live over websocket.
+
+### Member roles
+
+When sharing, the owner assigns each member a permission role, and can change it at any time:
+
+| Role | Can do |
+|---|---|
+| **Viewer** | View the list and copy its places into their own trips — no changes to the list. |
+| **Editor** *(default)* | Add new places and edit existing ones. |
+| **Admin** | Everything an editor can, plus delete places. |
+
+The owner always has full control. The owner can also remove a member, and a member can leave a shared list themselves. Permissions are enforced on the server, so a role can only ever do what it is allowed to.
+
+## See also
+
+- [Addons-Overview](Addons-Overview)
+- [Admin-Addons](Admin-Addons)
+- [Admin: Categories](Admin-Categories)
+- [Dashboard Widgets](Dashboard-Widgets)

wiki/_Sidebar.md

@@ -63,6 +63,7 @@
 - [[Vacay]]
 - [[Atlas]]
 - [[Journey Journal|Journey-Journal]]
+- [[Collections]]
 - [[Dashboard Widgets|Dashboard-Widgets]]
 
 ## AI / MCP