Update ADR Inventory Skill

This skill updates the inventory table in docs/adrs/README.md to reflect the current set of ADR files.

Process

1. •Scan docs/adrs/ for all files matching adr-*.md
2. •Extract from each file:
   • •ADR number from the filename (e.g., adr-0003.md -> ADR-0003)
   • •Title from the # ADR-NNNN: <Title> heading on line 1
   • •Status from the ## Status section (line after the heading, e.g., ✅ Accepted)
3. •Date: Use the git log to find the commit date when the file was first added:
   bash

   git log --diff-filter=A --format=%as -- docs/adrs/adr-NNNN.md
   

   If the file is untracked (not yet committed), use today's date.
4. •Rebuild the inventory table in docs/adrs/README.md, sorted by ADR number ascending
5. •Format the table for consistent column widths

Table Format

The inventory table uses this structure:

## Inventory

| ADR                      | Status      | Date       | Title                             |
|--------------------------|-------------|------------|-----------------------------------|
| [ADR-0000](adr-0000.md)  | ✅ Accepted | 2026-02-10 | Use Architecture Decision Records  |

Column Details

Instructions

1. •Read all adr-*.md files in docs/adrs/
2. •For each file, extract the title from line 1 and status from the Status section
3. •Look up the git creation date for each file
4. •Replace the inventory table section in docs/adrs/README.md with the updated table
5. •Ensure the table is formatted with consistent column widths