🚧 WIP

README.md

@@ -224,10 +224,13 @@ Env = TankEnv        # `--env myenvs.tank` picks this up
 ```
 
 API surface (spec FR-8.2.14–17): `observe()` returns every
-DI/DO/AI/AO channel (I/O codes, names, values) plus aliases and
-degradation parameters; `apply()` writes DI/AI (the field);
+DI/DO/AI/AO channel (I/O codes, names, values, analog display
+ranges) plus aliases and degradation parameters; `apply()` writes DI/AI (the field);
 `force()` writes DO/AO master-side (headless runs, fault setup);
-`is_done()` optional end; `reset()` deterministic replay. Reference
+`is_done()` optional end; `reset()` deterministic replay.
+`state.channel(key)` returns the full channel record by I/O code
+or configured name; `state.channel_range(key)` gives an analog
+channel's (min, max) directly. Reference
 forms: `pkg.mod:ClassName`, `pkg.mod:factory`, or `pkg.mod` with
 `Env`/`make_env`. The shipped example is
 `envs/pump_station_env.py` (tank + pump physics with a low-level
@@ -400,7 +403,12 @@ requirement ID for each item in parentheses.
       may be negative (-65534–65535; stored as 16-bit two's
       complement), for signed plant quantities. DI/DO channels render
       in vertical columns of eight (0–7 left, 8–15 next) on thin,
-      tall module bezels mirroring real DIN-rail housings.
+      tall module bezels mirroring real DIN-rail housings. Dense
+      store (2026-10-04): `node.channel_ranges` always carries every
+      analog channel of the current layout (unconfigured = the
+      materialized default, stale codes pruned on rebuild), so
+      environments read min/max without fallbacks; the YAML and the
+      config export stay lean (non-default entries only).
 - [ ] M6: scenario run view + alias-ownership rejection (FR-10.2.6,
       FR-10.2.9) — deferred.
 - [x] Tests: 46 web-UI tests (`tests/test_webui.py`) via httpx