Make /roundup's tracked STATUS.md snapshot its default, committed output

Promote STATUS.md from an opt-in offer to standard behavior: every /roundup run now writes the report to ~/Projects/standards/STATUS.md (overwritten), shows it inline, and commits + pushes only that file so the portfolio state is diffable over time — the same durability reflex as /capture. STATUS.md remains the only file roundup writes; all project repos stay read-only. Updates guide (new Phase 4), wrapper, ROADMAP item 2, README, and Current state.

adapters/claude/commands/roundup.md

@@ -1,5 +1,5 @@
 ---
-description: Cross-project status roundup — read every repo's AGENTS.md/ROADMAP.md plus the inbox and compile one priority-grouped to-do list across all projects
+description: Cross-project status roundup — read every repo's AGENTS.md/ROADMAP.md plus the inbox, compile one priority-grouped to-do list across all projects, and write it to a tracked STATUS.md snapshot in the standards repo
 argument-hint: [optional focus, e.g. "only P0/P1" or a subset of repos]
 allowed-tools: Bash, Read, Grep, Glob, Agent, Write
 ---
@@ -15,6 +15,8 @@ per repo, the inbox pass, and the report format — is at:
 Read it in full first, then follow it exactly. If you cannot read that file, stop and report
 precisely that — do not improvise the roundup.
 
-Read and report only: gather and group by the priorities you find, but do not rank the
-projects against each other or tell me what to work on — deciding the best use of time is
-mine. After you present the report, help me reason about ordering only if I ask.
+Write exactly one file — the `STATUS.md` snapshot in the standards repo (committed + pushed
+so it's tracked and diffable over time); every project repo stays read-only. Don't decide for
+me: gather and group by the priorities you find, but do not rank the projects against each
+other or tell me what to work on — deciding the best use of time is mine. After you present
+the report, help me reason about ordering only if I ask.