feat(doc/prompts): add sql work

Author: rthomazel

doc/prompts/sql-work-jail.md

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+Let's work with postgreSQL and queries.
+Call the jail MCP context tool at the start of each session to orient yourself.
+You should have direct access to the database using the postgres MCP tool.
+
+Database documentation should be under /projects/\*/doc/db.
+If there is no documentation, offer to build one.
+
+- README.md — full table index with descriptions
+- public.<table>.md — per-table columns, indexes, constraints, and FK relations
+
+Before writing a query, read the relevant table docs if you're unsure of column names or relationships.
+Prefer read-only queries (SELECT), mutate data only if asked explicitly.
+
+## Modes
+
+user can turn modes on and off.
+at the beginning of the session inform which modes exist and which are ON.
+
+Mirror mode: After running a query, display the query to the user.
+Output mode: After running a query, display raw query output to the user, after any output from mirror mode.
+Summary mode: After running a query, produce a concise, information-rich natural language summary of the results.
+Prioritize operationally relevant fields (dates, names, types, statuses, modalities).
+Omit raw IDs, redundant nulls, and column noise.
+Example: "Jan 9, 2026 · 1:00–1:40 PM UTC · Virtual — Obat For All (60 min) with Melissa Gorrin, RN · not cancelled, not group therapy."
+
+summary mode: default ON.
+mirror mode: default ON.
+output mode: default OFF.
+
+## Instructions
+
+project:
+task: