推进 INI 面板 run readiness workflow helper

wasm-port/docs/ui-run-summary-helpers.md

@@ -7,7 +7,7 @@ summarizing an INI panel G-code run.
 `runtime/ui/ini-panel/run-workflow.js` contains the reusable UI workflow for
 selecting the session/default G-code program, loading it from OPFS, staging it
 into the interpreter WASM filesystem, invoking the LinuxCNC interpreter, and
-returning run field/log state. These helpers are intentionally pure so browser
+returning run readiness, field, and log state. These helpers are intentionally pure so browser
 UI panels, SDK-facing wrappers, and Node smoke tests can share the same summary
 shape without reading DOM text or parsing log output.
 
@@ -95,8 +95,8 @@ functions:
 ```
 
 It returns the selected program mapping, raw interpreter result text, run
-summary, UI field state, log lines, and optional UI motion snapshots produced
-by the injected `summarizeRun` callback:
+summary, readiness state, UI field state, log lines, and optional UI motion
+snapshots produced by the injected `summarizeRun` callback:
 
 ```js
 {
@@ -108,6 +108,7 @@ by the injected `summarizeRun` callback:
   },
   resultText: "canon_event=...",
   summary: { runStatus: "ok", programSource: "snapshot" },
+  readiness: { phase: "ready", canRun: true },
   fields: { runStatus: "ok", sessionGcode: "linuxcnc/gcode/ui-session.ngc" },
   motionSnapshots: [{ line: 1 }],
   logLines: ["Program: linuxcnc/gcode/ui-session.ngc -> /work/ui-session.ngc"]
@@ -117,6 +118,10 @@ by the injected `summarizeRun` callback:
 `selectSessionGcodeProgram(input)` is the pure program-selection helper used by
 the workflow. Invalid snapshot G-code paths fall back to the UI default program.
 
+`createRunSessionReadinessState(input)` is the pure readiness helper used by the
+workflow and panel state summary. It reports the selected program, loaded
+session path, snapshot metadata, and whether the run button can execute.
+
 ## Boundary Rules
 
 - Do not parse G-code text in these helpers.