fix(cli): warn when squad watch receives unused message args (#703)

[diberry]

What

Detects extra positional args passed to squad watch and prints a clear warning instead of silently ignoring them.

Why

Users expect squad watch --interval 5 "Nick, Run scheduled tasks" to route the message to agent Nick on each poll cycle. But watch mode only runs Ralph polling loop — the quoted message is silently dropped. This caused confusion (reported by community user).

How

Makes the existing positional-arg detection (previously verbose-only) always warn with a clear UX message:

⚠️  Watch mode does not route messages to agents. Ignoring: "Nick, Run scheduled tasks"
   To address an agent directly, use an interactive session instead.

Files Changed

• packages/squad-cli/src/cli-entry.ts — warning always shown (was verbose-only)
• CHANGELOG.md — changelog entry
• docs/src/content/docs/features/ralph.md — caution admonition
• docs/src/content/docs/reference/cli.md — CLI reference note
• .changeset/watch-message-warning.md — changeset

Closes #703

Based on PR #704 by @tamirdresher

Co-authored-by: tamirdresher
Co-authored-by: Copilot

[github-actions]

🛫 PR Readiness Check

ℹ️ This comment updates on each push. Last checked: commit 85dc7c8

⚠️ 2 item(s) to address before review

Status	Check	Details
✅	Single commit	1 commit — clean history
✅	Not in draft	Ready for review
✅	Branch up to date	Up to date with dev
❌	Copilot review	No Copilot review yet — it may still be processing
✅	Changeset present	Changeset file found
✅	Scope clean	No .squad/ or docs/proposals/ files
✅	No merge conflicts	No merge conflicts
✅	Copilot threads resolved	0 active Copilot thread(s) resolved (3 outdated skipped)
❌	CI passing	16 check(s) still running

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[github-actions]

🟡 Impact Analysis — PR #858

Risk tier: 🟡 MEDIUM

📊 Summary

Metric	Count
Files changed	4
Files added	1
Files modified	3
Files deleted	0
Modules touched	3

🎯 Risk Factors

• 4 files changed (≤5 → LOW)
• 3 modules touched (2-4 → MEDIUM)

📦 Modules Affected

docs (2 files)

• docs/src/content/docs/features/ralph.md
• docs/src/content/docs/reference/cli.md

root (1 file)

• .changeset/watch-message-warning.md

squad-cli (1 file)

• packages/squad-cli/src/cli-entry.ts

---

This report is generated automatically for every PR. See #733 for details.

[Copilot]

Pull request overview

This PR improves the squad watch / squad triage UX by warning when users pass extra positional arguments (which are not used by watch mode), and updates docs/changelog to clarify that watch is a polling loop rather than a message router.

Changes:

• Always warn (not just in --verbose) when squad watch/triage receives unused positional args.
• Document the behavior in the CLI reference and Ralph/watch docs.
• Add changelog + changeset entries for the CLI change.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
packages/squad-cli/src/cli-entry.ts	Warns when positional args are provided to watch/triage instead of silently ignoring them.
docs/src/content/docs/reference/cli.md	Adds a note in the CLI commands table clarifying extra args are ignored.
docs/src/content/docs/features/ralph.md	Adds a cautionary callout explaining watch mode doesn’t route agent messages.
CHANGELOG.md	Adds an Unreleased changelog entry describing the new warning + doc clarification.
.changeset/watch-message-warning.md	Adds a patch changeset for @bradygaster/squad-cli.

[diberry]

Closing — superseded by #859 which covers the same cli-entry.ts changes comprehensively.