Add --quiet flag to koad-io wrapper — suppress spinners and flashy output for AI sessions

[koad]

Problem

The spinner in the gestate command (and likely other commands) is great for human terminals but eats context in Claude Code sessions. Animated output, ANSI escape sequences, and spinner frames get captured as literal characters in the conversation context — noise that crowds out useful signal.

Proposed Solution

Add a --quiet (or -q) flag to the main koad-io wrapper that suppresses:

• Spinners / progress animations
• ANSI color codes and escape sequences
• Any decorative / flashy output

In quiet mode, commands should still emit meaningful status lines (what's happening, what completed, what failed) — just no animation or decoration.

Usage

koad-io --quiet gestate mercury
koad-io -q install nodejs

Or via environment variable so entities can set it once in .env:

KOAD_IO_QUIET=1 koad-io gestate mercury

Why

When Juno or Vulcan run koad-io commands inside a Claude Code session, every spinner frame and escape sequence lands in the context window. The context should be pointed at the work, not at decorative terminal output.

The --quiet flag lets AI sessions stay clean without breaking the human terminal experience.

Acceptance Criteria

• --quiet / -q flag recognized by the main wrapper before dispatching to subcommands
• KOAD_IO_QUIET=1 env var as an alternative
• Spinners suppressed in quiet mode
• ANSI/color output suppressed in quiet mode
• Meaningful plain-text status still emitted (start, done, error)
• Human terminal (no flag) unchanged

[koad]

Implemented and pushed in commit a8b4c9c.

What was changed

bin/koad-io (main wrapper):

• Detects --quiet / -q flag in the argument list before any dispatching occurs
• Also respects KOAD_IO_QUIET=1 if already set in the environment
• Sets and exports KOAD_IO_QUIET=1 so all downstream subcommands inherit it
• Strips the flag from $@ before passing args to subcommands
• Replaces the decorated --koad-io [$ENTITY] $1 start-- ack block with a plain [koad-io] start: <cmd> (quiet mode) line in quiet mode; human terminal output unchanged

commands/gestate/command.sh (primary command with spinner/ANSI usage):

• ASCII art banner suppressed in quiet mode
• spinner() short-circuits to a plain wait $pid in quiet mode — no tput civis/cnorm, no cursor animation
• shutdown() trap skips tput cnorm in quiet mode
• New pause N helper function: runs sleep N & spinner $! for humans, returns 0 immediately in quiet mode
• All ~20 decorative echo && sleep N & spinner $! calls replaced with pause N
• WORD_WRAP_WIDTH falls back to 80 in quiet mode (no tput cols)
• The 18-second countdown before gestation starts is skipped in quiet mode

Behaviour

# Human terminal — unchanged
koad-io gestate myentity

# Quiet mode via flag — no spinners, no ASCII art, plain status lines
koad-io gestate myentity --quiet

# Quiet mode via env — same suppression
KOAD_IO_QUIET=1 koad-io gestate myentity

# Short flag also works
koad-io gestate myentity -q

Closing this issue.