Weak Interaction as Transaction Closure SU(2), Charged Transformation, and Reclosure of Identity Channels

Paper 6 interpreted gauge symmetries as closure constraints governing admissible field transformations. This seventh paper specializes that gauge-closure grammar to the weak interaction. The central thesis is that the weak interaction is transaction closure: a gauge-governed transformation of identity, charge, and interaction channel under SU(2) admissibility. Unlike electromagnetism, which preserves particle identity while mediating phase-charge interaction, the weak interaction permits identity transformation. It does not merely act between fixed objects; it enables one closure-residue identity to reconfigure into another through charged or neutral weak transaction channels. The W+ and W- bosons are interpreted as charged transaction mediators, while the Z boson is interpreted as a neutral weak-depth disclosure channel. Beta decay provides the clearest worked example: a neutron does not simply emit particles as pre-existing objects, but undergoes a weak reclosure transaction in which internal closure structure transforms into a proton, electron, and antineutrino residue sequence. This paper extends Atomic Continuum Ontology from gauge constraint to identity-transforming interaction and prepares the next paper on SU(3) color confinement closure.