installer: mirror the brand terminal style system (surface 2)

[LukasWodka]

Summary

Surface 2 of 2 — ports the Go CLI's brand terminal style system (tracebloc/cli#367) to the bash installer + the Windows ps1, so every tracebloc surface reads identically. Organising idea from the homepage gradient: cyan orients (structure), lime moves (action). Design spec + real render: the style artifact shared in the thread.

common.sh — a colour engine mirroring internal/ui

• Decides mode {none,16,true} + bg {dark,light}once at source time — before setup_log_file redirects stdout through tee, so -t 1 sees the real terminal:
  • NO_COLOR / non-TTY / TERM=dumb / TB_PLAIN=1 → none; COLORTERM=truecolor|24bit → 24-bit; else ANSI-16. COLORFGBG picks the background.
  • This also adds the colour-off gating the installer never had (it used to emit escapes unconditionally).
• A tone table (_sgr) maps each role to its exact 24-bit hex on dark and light + the nearest ANSI-16 fallback — the same values the Go engine emits (#01a5cc, #91e947, #a7ed6c, …).
• Re-points the helpers: success ✔ → lime, warn ⚠ → amber, error ✖ → bold red, step / step_header → cyan headings, labels → dim. Legacy CYAN/GREEN/… kept as tone aliases so untouched call sites stay on-brand and honour the off switch.

summary.sh — the connected / starting / error screens

Cyan headings · lime commands (tracebloc data ingest) · cyan-underline links · soft-lime descriptions · lime ● online (replacing the 🟢 emoji) · dim label : value rows.

install-k8s.ps1 — Windows parity (16-colour tier)

Write-Host can't do truecolor, so Windows gets the ANSI-16 tier of the same roles: summary commands Cyan → Green, the "next" heading → Cyan, metadata labels dim with plain values. Text unchanged → Pester assertions unaffected.

Test plan

• scripts/manifest.sha256 regenerated (R8 supply-chain gate) for the 3 changed installer files.
• Full bats suite green except the two pre-existing local failures (validate_config / _extract_yaml_value, unrelated).
• bash -n + shellcheck clean on the changed libs. The tone escapes were verified to match cli#367 byte-for-byte (38;2;1;165;204 cyan, 38;2;145;233;71 lime). No bats test asserts on colour codes, so the new gating is safe.

🤖 Generated with Claude Code

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Note

Low Risk
Terminal presentation and checksum manifest only—no install logic, credentials, or cluster behavior changes.

Overview
Ports the tracebloc CLI brand terminal palette (cyan = structure, lime = action) into the bash installer and aligns the Windows summary screen with the same roles.

common.sh replaces flat RED/GREEN/CYAN with a small color engine: picks none / 16-color / truecolor from NO_COLOR, TTY, COLORTERM, and light/dark background; exposes semantic TB_* tones matching internal/ui; wires success/warn/error/step/step_header to those tokens; keeps legacy color names as aliases so existing call sites stay on-brand and now respect color-off (previously escapes always printed).

summary.sh restyles the post-install screens: cyan headings, lime commands, underlined cyan links, dim labels, lime ● instead of 🟢, and branded error/warn lines.

install-k8s.ps1 applies the ANSI-16 tier of the same mapping (DarkGray labels, Cyan “what’s next”, Green runnable commands) without changing copy.

manifest.sha256 updated for the three touched installer scripts.

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[LukasWodka]

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