feat: add reversible config-entry ownership and mapify uninstall (#314)

[azalio]

Summary

Implements #314 — reversible ownership tracking for provider config merges (MCP servers, statusline) and a new mapify uninstall command that removes MAP-owned entries without touching user-customised values.

Changes

src/mapify_cli/install_manifest.py

• Add ConfigEntry dataclass: tracks file (relative POSIX path), key_path (dot-notation, e.g. mcpServers.sequential-thinking), installed_at, mapify_version
• Add ReconcileResult dataclass: removed / skipped / missing lists
• InstallManifest gains a config_entries: list[ConfigEntry] field (defaults to [] for backward compat)
• _scan_mcp_config_entries: at manifest build time, records MCP servers whose current value exactly matches the canonical MAP config — user-modified entries are excluded
• _scan_statusline_config_entry: records statusLine only when the command string contains "map-statusline.py" (MAP ownership marker); no absolute paths stored
• reconcile_config(project_path): reads config_entries from manifest, removes MAP-owned entries, skips user-modified ones, marks already-absent entries as missing
• build_manifest updated to scan and populate config_entries for the claude provider (codex gets empty list)
• read_manifest backward-compatible: old manifests without config_entries key default to []

src/mapify_cli/__init__.py

• New mapify uninstall command with --yes / -y flag (skips confirmation), exit codes 0/1/2

tests/test_install_manifest.py

• 26 new tests covering VC10–VC17: MCP entry detection, statusline detection, user-modified exclusion, reconcile remove/skip/missing, backward compat

Test results

3309 passed, 4 skipped, 0 failures (full suite)
ruff: All checks passed
pyright: 0 errors, 0 warnings, 0 informations

Design notes

• Satisfies the Codex hooks.json generator writes unsupported _map_managed top-level key #270 guardrail: no metadata added to strict provider schemas; ownership stored in the manifest's own config_entries list
• Scan-based detection (value-equality against canonical config) avoids any schema mutation at install time
• No absolute paths in manifest; "map-statusline.py" substring serves as the ownership marker

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Review details

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: 5cf2ae94-f7db-46b3-9f04-62e9adb33e07

📥 Commits

Reviewing files that changed from the base of the PR and between 7ceb597 and 43840f3.

📒 Files selected for processing (4)

• docs/ARCHITECTURE.md
• src/mapify_cli/__init__.py
• src/mapify_cli/install_manifest.py
• tests/test_install_manifest.py

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch claude/compassionate-cerf-5tugql

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