schema inference + automated decomposition

given doc A-001 w section B containing a bulleted list w three items, define new scheme w prefix A.B-, assign each list entry to a respective doc, and refactor A- to generate from fragment compilation.

Start by locating how document A-001, section B, bulleted entries, and fragment compilation are currently represented. Trace how the existing A- scheme is generated, then determine the expected decomposition and A.B- naming behavior. Done means the new scheme is defined, each list entry maps to its own document, and A- generation uses fragment compilation.

Written by the indexing model from the issue text.