feat(zones): rename tabs to zones across api, ui, and storage

Made-with: Cursor

docs/API.md

@@ -15,7 +15,7 @@ All JSON APIs use `Content-Type: application/json` for bodies and responses unle
 
 The main UI has two modes controlled by the mode toggle:
 
-- **Run mode**: optimized for operation (tab/preset selection and profile apply).
+- **Run mode**: optimized for operation (zone/preset selection and profile apply).
 - **Edit mode**: shows editing/management controls (tabs, presets, patterns, colour palette, send presets, profile management actions, **Devices** registry for LED driver names/MACs, and related tools).
 
 Profiles are available in both modes, but behavior differs:
@@ -100,7 +100,7 @@ Existing records without `type` / `transport` / `id` are backfilled on load (`le
 | GET | `/profiles` | `{"profiles": {...}, "current_profile_id": "<id>"}`. Ensures a default current profile when possible. |
 | GET | `/profiles/current` | `{"id": "...", "profile": {...}}` |
 | GET | `/profiles/<id>` | Single profile. If `<id>` is `current`, same as `/profiles/current`. |
-| POST | `/profiles` | Create profile. Body may include `name` and other fields. Optional `seed_dj_tab` (request-only) seeds a DJ tab + presets. New profiles always get a populated `default` tab. Returns `{ "<id>": { ... } }` with status 201. |
+| POST | `/profiles` | Create profile. Body may include `name` and other fields. Optional `seed_dj_zone` (request-only) seeds a DJ zone + presets. New profiles always get a populated `default` zone. Returns `{ "<id>": { ... } }` with status 201. |
 | POST | `/profiles/<id>/apply` | Sets session current profile to `<id>`. |
 | POST | `/profiles/<id>/clone` | Clone profile (tabs, palettes, presets). Body may include `name`. |
 | PUT | `/profiles/current` | Update the current profile (from session). |
@@ -143,18 +143,18 @@ Stored preset records can include:
 - `colors`: resolved hex colours for editor/display.
 - `palette_refs`: optional array of palette indexes parallel to `colors`. If a slot contains an integer index, the colour is linked to the current profile palette at that index.
 
-### Tabs — `/tabs`
+### Tabs — `/zones`
 
 | Method | Path | Description |
 |--------|------|-------------|
-| GET | `/tabs` | `tabs`, `tab_order`, `current_tab_id`, `profile_id` for the session-backed profile. |
-| GET | `/tabs/current` | Current tab from cookie/session. |
-| POST | `/tabs` | Create tab; optional JSON `name`, `names`, `presets`; can append to current profile’s tab list. |
-| GET | `/tabs/<id>` | Tab JSON. |
-| PUT | `/tabs/<id>` | Update tab. |
-| DELETE | `/tabs/<id>` | Delete tab; can delete `current` to remove the active tab; updates profile tab list. |
-| POST | `/tabs/<id>/set-current` | Sets `current_tab` cookie. |
-| POST | `/tabs/<id>/clone` | Clone tab into current profile. |
+| GET | `/zones` | `tabs`, `zone_order`, `current_zone_id`, `profile_id` for the session-backed profile. |
+| GET | `/zones/current` | Current zone from cookie/session. |
+| POST | `/zones` | Create zone; optional JSON `name`, `names`, `presets`; can append to current profile’s zone list. |
+| GET | `/zones/<id>` | Zone JSON. |
+| PUT | `/zones/<id>` | Update zone. |
+| DELETE | `/zones/<id>` | Delete zone; can delete `current` to remove the active zone; updates profile zone list. |
+| POST | `/zones/<id>/set-current` | Sets `current_zone` cookie. |
+| POST | `/zones/<id>/clone` | Clone zone into current profile. |
 
 ### Palettes — `/palettes`