A terminal reader, ipx; the server is ipxd (#437)

ipx-tui (crates/tui) is iPX's reader in ratatui: your feeds, a feed's
items, an item's text as plain text, read and flagged as on the page,
through the API with an API token. It installs as `ipx`, so the daemon's
binary is now `ipxd`: the Dockerfile, release script, tests and every
doc and message that names its commands follow.

Naming the binary ipxd alone renamed its crate, and with it every log
target (ipx::scan became ipxd::scan): the default filters are ipx=info,
so nearly every line would have been dropped and the dashboard's queries
on the targets gone blank. The daemon's code is now a library still
called ipx, under a five-line ipxd main.rs, and the targets are as they
were.

ratatui is taken without its default features: 32 new packages in place
of 78.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RqkrVDqdiQEMWAkNGQ2tYA

crates/tui/Cargo.toml

@@ -0,0 +1,21 @@
+[package]
+name = "ipx-tui"
+version = "0.1.0-dev"
+edition.workspace = true
+publish = false
+
+[lints]
+workspace = true
+
+[[bin]]
+name = "ipx"
+path = "src/main.rs"
+
+[dependencies]
+anyhow.workspace = true
+chrono.workspace = true
+clap = { workspace = true, features = ["env"] }
+ratatui = { version = "0.30.2", default-features = false, features = ["crossterm"] }
+reqwest = { workspace = true, features = ["blocking"] }
+serde.workspace = true
+serde_json.workspace = true