Change Phase 1 to Phase 2 for agent context update

[Diegobevilacqua]

Description

Fixes inconsistent phase labels in templates/commands/plan.md: under Outline → step 3 (“Execute plan workflow”), two consecutive bullets were both Phase 1. Step 4 says the command ends after Phase 2 planning, so the second bullet (agent context update) is renamed to Phase 2 for clarity and consistency.

No CLI, script, or packaging changes—template wording only.

Testing

This change only updates instructional text in templates/commands/plan.md (no agent wiring or src/ edits). I verified the edit in the forked branch and that the rendered Markdown reads correctly.

• Tested locally with uv run specify --help
• Ran existing tests with uv sync && uv run pytest
• Tested with a sample project

AI Disclosure

• I did not use AI assistance for this contribution
• I did use AI assistance (describe below)