First incremental slice of decomposing the 2628-line mining_tab.cpp monolith (one giant
RenderMiningTabContent function). The ~636-line "Earnings" card section is moved verbatim into
RenderMiningEarnings(); mining_tab.cpp is now 1992 lines and calls it with the immediate-mode
layout context as parameters (draw list, fonts, scale/spacing, glass spec, pool-mode flag).
Behavior-preserving by construction: the body is byte-identical (the only additions are a
`const bool s_pool_mode = poolMode` alias and a local scratch `buf` so the moved code keeps its
original identifiers). The earnings-filter static moved with the card it belongs to. The
compiler surfaced every enclosing dependency, which became explicit parameters.
Verified: full-node + Windows + lite build, tests, hygiene, clean smoke start. Pending hands-on
visual check of the Earnings card before extracting the next section.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>