example: Add IPC remote control example.

README.md

@@ -131,7 +131,7 @@ pins the version and pulls in rust-analyzer + clippy.
 
 ## Current Status
 
-Phases 1 through 3 are complete. pikl works as a TUI menu with:
+Phases 1 through 6 are complete. pikl works as a TUI menu with:
 - Fuzzy, exact, regex, and inverse filtering with `|` pipeline chaining
 - Vim navigation (j/k, gg/G, Ctrl+D/U, Ctrl+F/B, modes)
 - Structured JSON I/O with sublabel, icon, group, and arbitrary metadata
@@ -140,6 +140,31 @@ Phases 1 through 3 are complete. pikl works as a TUI menu with:
 - Format templates (`--format '{label} - {sublabel}'`)
 - Field-scoped filtering (`--filter-fields`, `meta.res:3840` syntax)
 - Headless scripting via `--action-fd`
+- Multi-select with undo/redo and visual line mode
+- Table mode for CSV/TSV input with auto-generated or custom columns
+- IPC control via Unix socket (`--ipc`, `--session`)
+- Session filter history with Ctrl+P/Ctrl+N recall
+
+### IPC example
+
+Run pikl with IPC in one terminal, control it from another:
+
+```sh
+# terminal 1: start pikl with IPC enabled
+echo -e "alpha\nbeta\ngamma\ndelta" | pikl --ipc --session demo
+
+# terminal 2: query state over the socket
+echo '{"action":"get_state","id":"1"}' \
+  | socat - UNIX-CONNECT:/run/user/$(id -u)/pikl-demo.sock
+
+# terminal 2: add items dynamically
+echo '{"action":"add_items","items":["epsilon","zeta"]}' \
+  | socat -t 0.1 - UNIX-CONNECT:/run/user/$(id -u)/pikl-demo.sock
+```
+
+There's an interactive remote control demo at
+[examples/ipc-remote.sh](examples/ipc-remote.sh)
+(see [examples/ipc-remote.md](examples/ipc-remote.md) for the walkthrough).
 
 ## Platform Support