feat(config): add config edit and jq-based config get

[cpcloud]

Summary

• Restructure micasa config into config get [filter] and config edit subcommands
• config get uses embedded gojq for jq-syntax queries against config values — identity filter shows annotated TOML, scalars print bare, objects as TOML, arrays as JSON; sensitive fields (api_key) and empty string values are stripped
• config edit opens the config file in $VISUAL/$EDITOR with OS-specific command splitting (POSIX shlex on Unix, windows.DecomposeCommandLine on Windows), creating the file atomically with example TOML if it doesn't exist
• Switch editorBinary() in internal/app to use the same OS-aware config.SplitEditorCommand() for consistent cross-platform editor launching
• Add golang.org/x/sys as a direct dependency for Windows command-line parsing

🤖 Generated with Claude Code

[Copilot]

Pull request overview

Adds richer configuration management to the micasa CLI by introducing jq-based config querying and an interactive config edit flow, aligning CLI behavior with canonical ShowConfig output and improving editor command parsing.

Changes:

• Introduce Config.Query() to run jq filters against resolved config with type-aware output formatting and secret redaction.
• Add config editing helpers (Editor, EditorCommand, EnsureConfigFile) and wire a new micasa config edit subcommand.
• Update CLI/tests to the new micasa config get [filter] default behavior and add new dependencies (gojq, shlex).

Reviewed changes

Copilot reviewed 9 out of 10 changed files in this pull request and generated 9 comments.

Show a summary per file

File	Description
internal/config/query.go	New jq-powered config query + sanitization + output formatting helpers.
internal/config/edit.go	New editor detection/arg-splitting and config file bootstrap helper.
internal/config/edit_test.go	Unit tests for editor resolution/splitting and config file creation behavior.
internal/config/config.go	Get() now rejects section keys with a more explicit error path.
internal/app/model.go	Switch editor command parsing to shlex splitting for quoted paths.
cmd/micasa/main.go	Replace old config flags with config get (default) and config edit.
cmd/micasa/main_test.go	Update CLI integration tests for new config subcommands and edit behavior.
go.mod	Add github.com/itchyny/gojq and github.com/google/shlex.
go.sum	Dependency checksums for new modules.
flake.nix	Update vendorHash for new vendored deps.

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[codecov]

Codecov Report

❌ Patch coverage is 50.00000% with 116 lines in your changes missing coverage. Please review.
✅ Project coverage is 76.29%. Comparing base (f923a61) to head (c348e1c).
⚠️ Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/config/query.go	54.61%	44 Missing and 15 partials ⚠️
cmd/micasa/main.go	0.00%	18 Missing ⚠️
internal/config/edit.go	64.58%	12 Missing and 5 partials ⚠️
internal/app/model.go	0.00%	9 Missing ⚠️
internal/config/config.go	40.00%	5 Missing and 1 partial ⚠️
internal/config/edit_windows.go	55.55%	2 Missing and 2 partials ⚠️
internal/config/edit_unix.go	62.50%	2 Missing and 1 partial ⚠️

Additional details and impacted files

Files with missing lines	Coverage Δ
internal/config/edit_unix.go	62.50% <62.50%> (ø)
internal/config/edit_windows.go	55.55% <55.55%> (ø)
internal/config/config.go	89.72% <40.00%> (-0.93%)	⬇️
internal/app/model.go	62.12% <0.00%> (-0.25%)	⬇️
internal/config/edit.go	64.58% <64.58%> (ø)
cmd/micasa/main.go	3.18% <0.00%> (-0.14%)	⬇️
internal/config/query.go	54.61% <54.61%> (ø)

... and 4 files with indirect coverage changes

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[Copilot]

Pull request overview

Copilot reviewed 11 out of 12 changed files in this pull request and generated 4 comments.

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[Copilot]

Pull request overview

Copilot reviewed 12 out of 13 changed files in this pull request and generated 4 comments.

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[Copilot]

Pull request overview

Copilot reviewed 12 out of 13 changed files in this pull request and generated 4 comments.

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[Copilot]

Pull request overview

Copilot reviewed 15 out of 16 changed files in this pull request and generated 1 comment.

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[Copilot]

Pull request overview

Copilot reviewed 15 out of 16 changed files in this pull request and generated 2 comments.

Comments suppressed due to low confidence (1)

internal/app/model.go:2866

• editorBinary() checks $EDITOR before $VISUAL, but config.Editor() (used by micasa config edit) prioritizes $VISUAL over $EDITOR. This makes editor selection inconsistent between the TUI notes editor and the CLI config editor when both env vars are set. Please align the precedence (ideally prefer $VISUAL, or reuse config.Editor() here) so the app behaves consistently across commands/features.

	raw := os.Getenv("EDITOR")
	if raw == "" {
		raw = os.Getenv("VISUAL")
	}

[Copilot]

Pull request overview

Copilot reviewed 15 out of 16 changed files in this pull request and generated 2 comments.

[Copilot]

Pull request overview

Copilot reviewed 16 out of 17 changed files in this pull request and generated 1 comment.

[Copilot]

Pull request overview

Copilot reviewed 15 out of 16 changed files in this pull request and generated 1 comment.

Comments suppressed due to low confidence (1)

internal/app/model.go:2866

• editorBinary() prefers $EDITOR before $VISUAL, but the new config editor helpers (config.Editor() / micasa config edit) prefer $VISUAL first. This inconsistency can lead to the TUI and CLI opening different editors for the same user configuration. Consider reusing config.Editor() here (or at least matching its precedence order) so editor resolution is consistent across the app.

	raw := os.Getenv("EDITOR")
	if raw == "" {
		raw = os.Getenv("VISUAL")
	}