Phase 1 TUI: two-pane functions<->disasm, virtualized listing, nav backbone

- idatui/app.py: keyboard-first Textual app
  * FunctionsPanel: lazy-streamed function list (DataTable) with glob filter
  * DisasmView: line-VIRTUALIZED ScrollView -- paints from domain block cache,
    background-fetches misses, prefetches neighbors. Proven: 52,120-insn func,
    jump-to-bottom in 0.31s with only ~6 blocks (~1.5k lines) ever materialized.
  * address-history nav stack (Enter follow / Esc back); goto by name or 0xADDR
  * bump_idle_ttl + KeepAlive on startup so the session never idles out
  * all MCP work on Textual worker threads; UI never blocks
- idatui/tui.py: launcher (python -m idatui.tui / console script 'idatui')
- tests/test_tui.py: headless Pilot test, 9/9 (boot, load 10k funcs, open,
  scroll, bg-cache, goto-bottom, filter)
- pyproject: textual extra + idatui script entry

1 files changed, 5 insertions, 2 deletions

diff --git a/pyproject.toml b/pyproject.toml
index e491542..cb23cfa 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,10 +8,13 @@ requires-python = ">=3.11"
 dependencies = []
 
 [project.optional-dependencies]
-# The TUI layer (added in a later phase) pulls in Textual.
-tui = ["textual>=0.60"]
+# The TUI layer pulls in Textual; the client/domain layers are stdlib-only.
+tui = ["textual>=8"]
 dev = ["pytest>=8"]
 
+[project.scripts]
+idatui = "idatui.tui:main"
+
 [build-system]
 requires = ["hatchling"]
 build-backend = "hatchling.build"