Release Listening Stack 0.3.2

[emeisazam]

Summary

• advance the installer and citation version to 0.3.2
• pin GERM v0.3.2 to reviewed merge commit 55c7fc1f403c969c1053d727740681db24718bd6
• retain Oída 0.9.1, AKOÚŌ 0.9.0, Earworm 0.6.0, and Akousmata 0.6.0
• align current-release documentation and regression expectations

Verification

• 56 unit tests pass
• reproducible release archive build passes
• generated executable models JSON smoke passes
• install shell syntax checks pass
• remote annotated GERM v0.3.2 tag dereferences to the pinned commit