chore(deps): bump @types/node to 26, replace chalk and commander, move tsx to devDeps

[kboshold]

What

Trims and modernizes the runtime dependency set without changing CLI behavior:

• chalk removed; terminal colors now use node:util styleText. Output is byte-identical, including NO_COLOR and non-TTY auto-disable.
• commander replaced with cleye (smaller, zero transitive deps). All commands, flags, exit codes, hidden commands, variadic args, and the global -s/--session option behave the same. Help layout differs slightly in formatting (alphabetized flags); semantics are unchanged.
• @types/node bumped to ^26.0.0. It stays in dependencies because the published config-builder declarations reference NodeJS types; engines.node stays >=22.
• tsx moved to devDependencies. Nothing in src/ imports it (config loading is jiti); only the dev/build scripts and the unbuilt-clone fallback use it.

Parity is locked in by new tests: byte-exact ANSI assertions for every glyph/color path, a --help sweep over all 22 root and 5 daemon commands, and a strict typecheck of a sample .zaps.mts against the published dist/config/index.d.ts.

Why

Two runtime dependencies duplicated what Node now ships or what a lighter library does with less, and one was never a runtime dependency to begin with. Fewer packages means a smaller install and less supply-chain surface for npm consumers.

[github-actions]

Coverage Report for Unit Tests

Status	Category	Percentage	Covered / Total
🔵	Lines	92.08% (🎯 85%)	4784 / 5195
🔵	Statements	91.96% (🎯 85%)	4942 / 5374
🔵	Functions	89.38% (🎯 85%)	1103 / 1234
🔵	Branches	86.71% (🎯 85%)	2605 / 3004

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
src/cli/errors.ts	100%	100%	100%	100%
src/config/helpers/cli.ts	100%	100%	100%	100%

Generated in workflow #160 for commit ec3ad8a by the Vitest Coverage Report Action

[github-actions]

Coverage Report for Integration Tests

Status	Category	Percentage	Covered / Total
🔵	Lines	40.8% (🎯 85%)	2398 / 5877
🔵	Statements	40.46% (🎯 85%)	2458 / 6075
🔵	Functions	38.68% (🎯 85%)	516 / 1334
🔵	Branches	33.53% (🎯 85%)	1107 / 3301

File Coverage

File	Stmts	Branches	Functions	Lines	Uncovered Lines
Changed Files
src/cli.tsx	0%	0%	0%	0%	41-1572
src/cli/errors.ts	0%	0%	0%	0%	5-38
src/config/helpers/cli.ts	25%	0%	25%	25%	14-17, 27-28, 42-51

Generated in workflow #160 for commit ec3ad8a by the Vitest Coverage Report Action