1473396e5b
A RAM install that fails at a LOAD step is typically the library-version gate: the card verifies the CAP's import list when the Import component completes (JC VM 4.5.2). The failure hint now says so and points at the CAP compatibility test (Set all 0.0, then restore the lines one at a time to find the missing package and version), replacing the old "retry with a smaller LOAD block" advice, which is a red herring for that gate. The failure popup gains a one-click "Run the CAP compatibility test" button: it closes the popup, switches the RAM operation selector to compat and runs it with the same .cap (the file input still holds it and the probe list is prefilled with its imports), so the diagnostic is one click away. An INSTALL [for load] refusal now gets its own advice instead of the LOAD hint: the card refused to open the load file - usually a duplicate load file from an earlier run (delete the package first, Explore -> Delete), or rejected load parameters. Tests: the hint's wording and branches (LOAD vs INSTALL [for load]), the button handler's op switch. 862 frontend + 842 Python; sw cache simple-v422.