Add Any Rule Catcher assistant workflow

[czocher2-boop]

Adds assistant-workflows/any-rule-catcher/SKILL.md.

What it does

Builds a dated, court-sourced table of every rule that actually binds one filing on one subject, across the four layers that can carry one: national or statutory, court-wide, the individual judge, and the room next door. Not a summary — a table, with a working link on every row.

No subject lives at one layer. A word limit is a national rule modified by a circuit rule modified by a judge's practices. A deadline is a triggering rule plus a computation rule plus a service rule plus a local variation.

Design decisions worth flagging

• It asks seven questions and stops. Subject, scope, state courts, the case, ethics and statutes, columns, destination. Nothing is researched until they are answered, and a small scope is never widened quietly.
• Withdrawn rules are listed before live ones. The most common way to be wrong is not missing a new rule; it is filing under an old one.
• The run date goes on the face of the table. Every such table is a snapshot and has to say so, which is what lets a reader price its staleness without asking.
• The negative is a finding. "No provision at this layer, confirmed against the current edition on [date]" is a usable answer; a blank cell is not.
• Source of authority is never just "rule." Statute, national rule, adopted local rule, general order, judge standing order, individual practices, clerk's procedure, ethics opinion, proposal declined, proposal pending — they carry different force and different amendment paths.
• Four named traps are checked out loud: supersession, defaults that bind by silence, the five-part computation stack, and rules a lower layer cannot lawfully change.

Compliance

• Folder, name, and slug of metadata.mike-display-name all agree (any-rule-catcher / "Any Rule Catcher").
• mike-availability: "add-on", mike-type: "assistant", all metadata values are strings.
• Harness-neutral: no CLI commands, no named models or tools, and no assumption of file access — the destination step degrades to delivering the table in the conversation.
• Original work, submitted under the repository's MIT license.
• python3 workflow-schema/validate-workflows.py passes: 144 workflows, 16 column files, 5 packs.