[codex] add token profile history diagnostics

[peyton-alt]

Summary

• add top-level entire tokens profile for historical checkpoint token diagnostics
• default profile scans to latest 50 checkpoints, with --limit and --all for scope control
• aggregate token usage, repeated cache/API/subagent/missing-data signals, recommendations, JSON output, and public-checkpoint-safe limitations

Verification

• GOCACHE=/private/tmp/entire-go-cache go test ./cmd/entire/cli -run 'TestTokensProfileCmd' -count=1
• GOCACHE=/private/tmp/entire-go-cache go test ./cmd/entire/cli -run 'Test.*Tokens|Test.*Token' -count=1
• GOCACHE=/private/tmp/entire-go-cache go test ./cmd/entire/cli -count=1
• mise run lint
• mise run check
• real checkpoint smoke over public/local checkpoint refs: entire tokens profile --limit 5 and default entire tokens profile both completed successfully over 4,306 available checkpoints

---

Note

Low Risk
Read-only local git checkpoint metadata analysis with no auth or data writes; main risk is slow runs when using --all on very large histories.

Overview
Adds a top-level entire tokens command group with profile, which scans committed checkpoint metadata only (no transcripts) to aggregate historical token usage and surface repeated patterns.

By default it analyzes the latest 50 checkpoints; --limit and --all control scope. Output includes aggregated totals, repeated signals (cache/context replay hotspots, high API call counts, subagent-heavy checkpoints, missing token data), actionable recommendations, explicit limitations, and optional --json. Token rollup reuses the same formatting/aggregation helpers as existing session/checkpoint token commands.

Tests cover text and JSON output, limit scoping, and empty checkpoint history.

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[Copilot]

Pull request overview

Adds a new top-level entire tokens command group with a profile subcommand that scans committed checkpoint metadata to produce historical token-usage diagnostics (aggregates, repeated signals, recommendations, limitations) with optional --json output.

Changes:

• Introduces entire tokens profile with default scope of the latest 50 committed checkpoints and --limit / --all scope controls.
• Implements reporting: aggregated token usage, repeated signal detection, recommendations, limitations, and JSON/text renderers.
• Adds unit tests covering text output, JSON output, limit scoping, and empty history behavior.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
cmd/entire/cli/tokens_profile.go	New tokens command group and profile implementation, including report building + renderers.
cmd/entire/cli/tokens_profile_test.go	New tests for entire tokens profile output modes and scoping behavior.
cmd/entire/cli/root.go	Registers the new tokens noun-group command in the root CLI.