decomp DBCServer_Release and inspect/document database

decomp/schema/README.md

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+# decomp/schema — catalog dump of `schema/*.mdf`
+
+Derived output, regenerable with `decomp/scripts/dump_schema.sh` (needs Docker).
+
+**Method:**
+1. Copy `schema/*.mdf/.ldf` to a scratch directory. The originals are never
+   opened in place.
+2. Attach the copies to a throwaway `mcr.microsoft.com/mssql/server:2022-latest`
+   container. The files are database version 957 (SQL Server 2022); a 2019
+   instance refuses them.
+3. Query `sys.*` catalogs and `OBJECT_DEFINITION`.
+
+**No table data is exported, only row counts.** The databases contain account
+and character data from the source deployment, so don't add data dumps here.
+
+| File (per DB) | Content |
+|---|---|
+| `tables.tsv` | table, row count, column count |
+| `columns.tsv` | schema.table, ordinal, column, type, max_length, precision, scale, nullable, identity, default |
+| `indexes.tsv` | table, index, type, is_pk, is_unique, column, key ordinal |
+| `foreign_keys.tsv` | none declared in any database |
+| `routines.tsv` | procedure/function/view/trigger parameters |
+| `procs/<name>.sql` | module definition text |
+| `empty_procs.txt` | procedures with no executable statement (stubs) |
+
+`proc_tables.tsv` (top level) is a heuristic text scan. For each procedure it
+lists the tables it references (`W` = appears as an INSERT/UPDATE/DELETE/MERGE
+target, `R` = otherwise) and its cross-database references. Tables built by
+dynamic SQL (the per-day log tables in RustyHearts_Log) are not captured.
+
+The procedure sources contain parameter names such as `@db_pass` (linked-server
+setup). No literal credentials were found (grep for password patterns).
+
+See `docs/DATABASE.md` for interpretation.