Add Capabilities Assemble

Add Capabilities — Assemble the recommendation

Assembler unit. The Add Capabilities branch asks the current runtime and the capabilities needed, resolves native-vs-bring-your-own per capability, verifies volatile facts, and writes inline within (Step 5). This unit records the artifact-level contract for the branch: it is the single creator of , and its postconditions (declared on the phase) are the branch’s completion gate. This is a self-contained sidebar branch — no runtime scoring, no handoff; it ends after writing the file. See § Step 5 for the document contents.