Make Copilot/Jules commit-authority grant self-visible in their own files

Every AI-agent-specific file linked to AGENTS.md for the roster and
authority table, but several never stated the agent's own commit
authority in the file that agent (or a human scanning it) actually
reads — leaving the grant invisible without cross-referencing
AGENTS.md. Some copilot-instructions.md files went further and
actively said "Do not create commits unless explicitly asked," which
directly contradicted the companywide grant.

Fix: every COPILOT.md, .github/copilot-instructions.md, CODEX.md, and
JULES.md now states its own agent's commit/push/tag authority
explicitly, not just by reference.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

Author: bradpotts

.github/copilot-instructions.md

@@ -5,8 +5,9 @@
 GitHub Copilot is the general development support assistant for this
 package — editing, refactors, tests, TypeScript/API hints, and productivity
 inside the IDE. Copilot does not own architecture direction, release
-decisions, or final handoff authority. Full roster and authority table:
-[AGENTS.md](../AGENTS.md).
+decisions, or final handoff authority. Copilot has commit, push, and tag
+authority per the companywide grant in `AGENTS.md` — see the Commit Policy
+section in [AGENTS.md](../AGENTS.md).
 
 ## Package Conventions
 
@@ -21,7 +22,7 @@ decisions, or final handoff authority. Full roster and authority table:
 - Prefer narrow, pattern-aligned changes.
 - Keep docs and validation contracts in sync when behavior changes.
 - Preserve unrelated local changes.
-- Do not create commits unless explicitly asked.
+- Commit, push, and tag freely within the working style above; do not merge PRs, publish, or release.
 
 ## Validation
 

COPILOT.md

@@ -2,7 +2,8 @@
 
 Copilot's full instructions for this repository live in
 [.github/copilot-instructions.md](.github/copilot-instructions.md) — that is
-the canonical file (GitHub reads it automatically). Shared roster, authority
+the canonical file (GitHub reads it automatically). Copilot has commit,
+push, and tag authority per the companywide grant. Shared roster, authority
 table, and PR requirements: [AGENTS.md](AGENTS.md).
 
 This file exists only as a root-level pointer for humans and other tools that