feat: clear unneccessary backend from kanban

package/gitea-kanban-tui/README.md

@@ -1,33 +1,25 @@
 # gitea-kanban-tui
 
-Keyboard-driven Kanban board for the custom Gitea fork. Native repository
-Projects are supported alongside the legacy repository-label backend. Backend
-selection is explicit; API failures never trigger a silent fallback.
+Keyboard-driven Kanban board for native repository Projects in custom Gitea fork.
 
 ## Configuration
 
-Create repository labels such as `kanban/01 Todo`, `kanban/02 Doing`, and
-`kanban/03 Done`. Column suffixes are sorted lexically, so numeric prefixes
-provide explicit ordering.
-
 Required configuration can come from flags or environment variables:
 
 | Flag | Environment | Meaning |
 | --- | --- | --- |
 | `--url` | `GITEA_URL` | Gitea base URL |
 | `--token-file` | `GITEA_TOKEN_FILE` | File containing API token |
-| `--backend` | `GITEA_KANBAN_BACKEND` | Required: `projects` or `labels` |
+| — | `GITEA_TOKEN` | API token fallback when no token file is configured |
 | `--project` | `GITEA_PROJECT` | Exact native project name |
 | `--project-id` | `GITEA_PROJECT_ID` | Native project ID instead of name |
 | positional `OWNER` | `GITEA_OWNER` | Repository owner |
 | positional `REPO` | `GITEA_REPO` | Repository name |
-| `--label-prefix` | `GITEA_LABEL_PREFIX` | Column prefix; default `kanban/` |
 
 Native mode requires an enabled repository Projects unit, project read/write
 repository permission, and a token with `read:issue`/`write:issue` scope. Issue
 creation/editing follows Gitea issue permissions; deletion requires repository
-admin permission in this fork. Label mode requires repository issue read/write
-permission. Token values are sent
+admin permission in this fork. Token values are sent
 only through Gitea's `Authorization` header and are never printed. Token-file
 input takes precedence over environment variables. Remote URLs must use HTTPS; plain HTTP is
 accepted only for loopback development.
@@ -36,7 +28,7 @@ accepted only for loopback development.
 export GITEA_URL=https://gitea.hectic-lab.com
 export GITEA_TOKEN_FILE="$HOME/.config/gitea/token"
 cargo run --manifest-path package/gitea-kanban-tui/Cargo.toml -- \
-  --backend projects --project Kanban yukkop util.nix
+  --project Kanban yukkop util.nix
 ```
 
 Alternatively:
@@ -44,14 +36,14 @@ Alternatively:
 ```sh
 nix develop .#ratatui
 cargo run --manifest-path package/gitea-kanban-tui/Cargo.toml -- \
-  --backend projects --project-id 1 owner repo
+  --project-id 1 owner repo
 ```
 
 ## Keys
 
 - Arrow keys or `h`/`j`/`k`/`l`: focus column/card
 - `H`/`L`: move focused card left/right
-- `r`: refresh labels and open issues
+- `r`: refresh project columns and issues
 - `?`: toggle help
 - `q`: quit
 
@@ -65,17 +57,6 @@ focused issue title/body, and `d` deletes it after confirmation. In the editor,
 `Esc` cancels. Closed projects, archived repositories, disabled Projects units,
 unassigned issues, and cross-repository IDs are rejected by the server.
 
-Explicit fallback command:
-
-```sh
-cargo run --manifest-path package/gitea-kanban-tui/Cargo.toml -- \
-  --backend labels --label-prefix kanban/ owner repo
-```
-
-In label mode, moving a card replaces its issue labels: all labels matching the configured
-column prefix are removed, the target column label is added, and non-column
-labels are preserved. The client uses only repository label and issue REST
-endpoints under `/api/v1`.
 
 ## Development