Update inventory summary to use new v4 api and display more statistics

[nllong]

[Copilot]

Pull request overview

This PR updates the inventory summary view to use the new v4 property column-summary API and expands the UI to support selecting cycles/columns/statistics, exporting CSV, and richer per-column statistics in the grid.

Changes:

• Replace legacy analysis-summary fetching with /api/v4/properties/column_summary/ via a new PropertyService and types.
• Add multi-select pickers (cycles/columns/stats), grid context menu actions, and CSV export to the summary UI.
• Update developer docs and pnpm installation/build safeguards.

Reviewed changes

Copilot reviewed 10 out of 10 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/app/modules/inventory-list/summary/summary.component.ts	Migrates data loading to v4 API, builds dynamic stat columns, adds filtering/context menu/selection state.
src/app/modules/inventory-list/summary/summary.component.html	Replaces single-cycle select with multi-pickers and adds CSV export + custom context menu UI.
src/@seed/api/property/property.types.ts	Introduces response/types for v4 property column summary endpoint.
src/@seed/api/property/property.service.ts	Adds PropertyService.columnSummary() wrapper for the v4 endpoint.
src/@seed/api/property/index.ts	Exports new property API module.
src/@seed/api/index.ts	Re-exports the property module from the API barrel.
src/@seed/styles/tailwind.scss	Comment typo fix (“macOS”).
README.md	Clarifies local run modes and proxy expectations; documents SEED_HOST.
pnpm-workspace.yaml	Updates pnpm build-allowlist configuration for native/built deps.
package.json	Adds a preinstall guard enforcing pnpm usage.

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