feat(cable): add omp-sessions cable configuration

television/cable/omp-sessions.toml

@@ -0,0 +1,30 @@
+[metadata]
+name = "omp-sessions"
+description = """
+omp sessions of the current git repo, newest first: age, the branch HEAD was
+on when the session was last written, and the title. The preview is the
+conversation's message text; enter resumes the session. Listing, preview and
+resume live in ~/.local/bin/omp-session, whose launcher (ctrl-a in fish and
+zsh) opens this cable when it has no session to resume on the default branch.
+"""
+requirements = ["omp-session", "omp"]
+
+# Record: display, session file (tab separated).
+[source]
+command = "omp-session --list"
+shell = "bash"
+display = "{split:\\t:0}"
+output = "{split:\\t:1}"
+
+[preview]
+command = "omp-session --preview '{split:\\t:1}'"
+shell = "bash"
+
+[keybindings]
+enter = "actions:resume"
+
+[actions.resume]
+description = "Resume the session"
+command = "omp-session --resume '{split:\\t:1}'"
+shell = "bash"
+mode = "execute"