Critical fixes (46 audit findings addressed):
app.rs:74 — poll() error in event loop now logs + breaks instead
of silently continuing (prevents silent hang on stdin failure)
config.rs:47 — .expect() in Config::default() replaced with
unwrap_or_else + log::error + full-field fallback config
dialog_ops.rs:831-842 — .expect() in spawned copy/move threads
replaced with let-else pattern that sends OpsError through
the channel gracefully (no more thread panics)
app.rs:43-46 — current_dir / canonicalize errors now logged
via inspect_err before falling back
main.rs:115 — logging init failure now prints to stderr via
unwrap_or_else(eprintln!) instead of silent discard
viewer/mod.rs:540 — filepos save failure now logged at debug
level instead of silently swallowed
terminal/mod.rs:73-74 — tcgetattr failure now logged at warn
level with a clear message about incomplete terminal restore
Tests: 1427 pass, zero warnings.
vasilito
5175dfb739