Add remediation priority summaries to reports

[brandonwise]

Summary

• Adds a shared remediation priority planner for scan findings.
• Exposes remediation_plan in JSON reports for CI/dashboards.
• Adds remediation priority sections to terminal, Markdown, and HTML reports.
• Updates README usage/docs and test-count trust signal.

Rationale

PMs and AI builders are asking for workflows that preserve human judgment while turning scattered agent/security evidence into clear next actions. This keeps agentwise useful for both technical reviewers and PM/security owners who need a prioritized cleanup view.

Telemetry used:

• Reddit PM discussion: AI is useful for repetitive PM work, but teams still validate and focus on user/product decisions: https://www.reddit.com/r/ProductManagement/comments/1pxji99/how_are_pms_actually_using_ai_in_daytoday_work/
• Reddit PM pain: requirements/PRDs need stronger evidence and earlier rigor, not blind chatbot handoff: https://www.reddit.com/r/ProductManagement/comments/1rfqkog/pm_keeps_discovering_new_requirements_late_how_do/
• GitHub trending signal: AI observability and context for agents are active developer demand areas: https://github.com/trending
• X signal: managing AI agents is becoming a workforce/governance problem: https://x.com/nurijanian/with_replies
• TikTok trend pipeline saved 43 X/web signals to projects/last-tiktok-trends.md, with AI tools, authenticity, and platform-native agent automation showing up as repeated clusters.

Validation

• PASS python3 skills/tiktok-trends/scripts/research.py saved projects/last-tiktok-trends.md with 43 signals.
• PASS cargo fmt --check.
• PASS cargo test report:: ran 19 report unit tests.
• PASS cargo test remediation_priority ran 2 CLI integration tests for Markdown/HTML remediation output.
• PASS cargo test test_json_output ran JSON renderer + CLI JSON tests.
• PASS cargo test ran 225 unit tests + 42 integration tests.
• PASS cargo clippy --all-targets -- -D warnings.
• PASS cargo build --release.
• PASS target/release/agentwise scan testdata/vulnerable-mcp.json | rg 'Remediation priority|fix now'.
• PASS target/release/agentwise scan testdata/vulnerable-mcp.json --format json | jq -e '.remediation_plan.fix_now > 0 and (.remediation_plan.top_actions | length > 0)'.
• PASS target/release/agentwise scan testdata/vulnerable-mcp.json --format markdown | rg '## Remediation priority|\| Fix now \|'.
• PASS target/release/agentwise scan testdata/vulnerable-mcp.json --format html | rg 'Remediation priority|priority-lane|action-row'.
• PASS node /Users/bwise/.openclaw/workspace/projects/humanizer/src/cli.js score README.md returned 41/100.
• PASS git diff --check.

Rollback

Squash-revert this PR. The change is limited to report rendering/docs/tests and does not alter scanner rules, scoring, or finding generation.