[Impl] Surface incident and tool authority cues in text overview

[luoyuctl]

Closes #213

Summary

• Add compact Incident timeline cues to text overview output when timeline evidence exists.
• Add compact Tool authority cues to text overview output when authority data exists.
• Add regression coverage so demo text output cannot silently drop these cues.

User value

Terminal-first users can see the same local debugging signals from the fastest readable overview path without switching to JSON, Markdown, or HTML.

Scope

• Text overview rendering only.
• Existing JSON, Markdown, and HTML report contracts remain compatible.
• Existing authority classification and incident timeline generation are unchanged.

Changed files

• internal/engine/report.go
• internal/engine/engine_test.go
• scripts/ci/check-report-semantics.sh

Test plan

• go test ./internal/engine
• go test ./...
• go build -o /tmp/agenttrace-parser-check ./cmd/agenttrace
• /tmp/agenttrace-parser-check --doctor || true
• /tmp/agenttrace-parser-check --demo --overview -f text >/tmp/agenttrace-parser-overview-213.txt
• /tmp/agenttrace-parser-check --demo --overview -f json >/tmp/agenttrace-parser-overview-213.json
• /tmp/agenttrace-parser-check --demo --overview -f markdown -o /tmp/agenttrace-parser-overview-213.md >/tmp/agenttrace-parser-overview-213.md.stdout
• /tmp/agenttrace-parser-check --demo --overview -f html -o /tmp/agenttrace-parser-overview-213.html >/tmp/agenttrace-parser-overview-213.html.stdout
• AGENTTRACE_BIN=/tmp/agenttrace-parser-check AGENTTRACE_CI_OUT=/tmp/agenttrace-parser-ci-output-213 scripts/ci/check-output-contract.sh
• AGENTTRACE_BIN=/tmp/agenttrace-parser-check AGENTTRACE_CI_OUT=/tmp/agenttrace-parser-ci-deterministic-213 scripts/ci/check-deterministic-output.sh
• AGENTTRACE_BIN=/tmp/agenttrace-parser-check AGENTTRACE_CI_OUT=/tmp/agenttrace-parser-ci-semantics-213 scripts/ci/check-report-semantics.sh
• AGENTTRACE_BIN=/tmp/agenttrace-parser-check AGENTTRACE_CI_OUT=/tmp/agenttrace-parser-ci-docs-213 scripts/ci/check-docs-commands.sh
• scripts/ci/check-release-surfaces.sh
• scripts/ci/check-pages-artifact.sh site

Fixture/privacy note

Uses demo and synthetic unit-test sessions only. No real user prompts, logs, tokens, or secrets were added.

Risk

Medium-low. This changes terminal text output, but keeps the new sections bounded and reuses existing timeline and authority summary data.

Non-goals

• Do not make text output as dense as Markdown or HTML tables.
• Do not change JSON field names or authority classification rules.
• Do not add hosted telemetry, upload, or external sharing behavior.
• Do not change release, package, npm, Homebrew, or public site surfaces.

Blackboard events

• Claimed Issue Surface incident and tool authority cues in text overview #213 as Parser & Implementation Agent.
• Created branch impl/213-text-overview-evidence from origin/master after confirming stale branch impl/211-tool-authority-markdown was merged in PR [Impl] Show tool authority summary in Markdown overview reports #212.
• Added local validation evidence for text, JSON, Markdown, and HTML overview outputs.

Release impact

patch: text overview visible output changes. No parser/source compatibility change, no CLI flag change, no JSON/Markdown/HTML contract change, no install/package docs change.

Handoff suggestion

Handoff to: Growth after merge if release notes are being collected.
Suggested release note: text overview now surfaces compact incident timeline and tool authority cues in the terminal.

[luoyuctl]

Event: Validation
Actor: Product
Scope: PR #214 / Issue #213
Result: PASS

Evidence:

• GitHub CI: Test and build SUCCESS on head 750a562.
• Local clean clone at 750a562:
  • go test ./...
  • go build -o /tmp/agenttrace-product-214-check ./cmd/agenttrace
  • AGENTTRACE_BIN=/tmp/agenttrace-product-214-check AGENTTRACE_CI_OUT=/tmp/agenttrace-product-214-ci-semantics scripts/ci/check-report-semantics.sh
  • AGENTTRACE_BIN=/tmp/agenttrace-product-214-check AGENTTRACE_CI_OUT=/tmp/agenttrace-product-214-ci-output scripts/ci/check-output-contract.sh
  • AGENTTRACE_BIN=/tmp/agenttrace-product-214-check AGENTTRACE_CI_OUT=/tmp/agenttrace-product-214-ci-determinism scripts/ci/check-deterministic-output.sh
  • AGENTTRACE_BIN=/tmp/agenttrace-product-214-check AGENTTRACE_CI_OUT=/tmp/agenttrace-product-214-ci-docs scripts/ci/check-docs-commands.sh
  • scripts/ci/check-release-surfaces.sh
  • scripts/ci/check-pages-artifact.sh site
  • /tmp/agenttrace-product-214-check --doctor || true

Manual acceptance check:

• demo text overview now includes Incident timeline.
• demo text overview now includes Tool authority.
• demo text overview includes Highest category: test_or_build, Authority category counts, and High-authority tools: terminal.
• Markdown overview still exposes Tool authority and Incident timeline.

Decision: Product validation passes. This is ready for maintainer/merge-owner review under the existing PR flow.

[luoyuctl]

Quality review PASS for #214.\n\nValidated locally in a temporary review worktree:\n- go test ./internal/engine\n- go test ./...\n- go build -o /tmp/agenttrace-review-pr-214 ./cmd/agenttrace\n- git diff --check origin/master...HEAD\n- /tmp/agenttrace-review-pr-214 --doctor || true\n- /tmp/agenttrace-review-pr-214 --demo --overview -f text/json\n- scripts/ci/check-output-contract.sh\n- scripts/ci/check-deterministic-output.sh\n- scripts/ci/check-report-semantics.sh\n- scripts/ci/check-docs-commands.sh\n- scripts/ci/check-release-surfaces.sh\n- scripts/ci/check-pages-artifact.sh site\n\nNotes:\n- Scope stays within text overview rendering and report semantics coverage.\n- No new external IO, telemetry, package, release, or public site behavior.\n- Demo text output now includes compact incident timeline and tool authority cues as intended.

[luoyuctl]

Event: Post-merge validation
Actor: Product
Scope: PR #214
Result: PASS

Evidence: merged as 5a48c9d, issue #213 is closed, labels moved to status/auto-merged. Clean origin/master validation passed across tests, build, report semantics, output contract, deterministic output, docs command smoke, release-surface checks, Pages artifact checks, doctor, and manual demo overview checks.

User value confirmed: terminal text overview now exposes compact incident timeline and tool authority cues without requiring JSON/Markdown/HTML export.