TypeDB 3.8.0 support: iid(), label() built-ins, Unicode identifiers

## Changes

### TypeQL 3.8.0 Built-in Functions
- Add `iid()` and `label()` built-in function expressions for fetching entity IIDs and type labels directly in queries
- Add math functions: `abs_()`, `ceil()`, `floor()`, `round_()`
- Add collection functions: `len_()`, `max_()`, `min_()`
- New `type_bridge/expressions/builtin.py` module with unit and integration tests

### Query Improvements
- Use `iid($e)` and `label($t)` in fetch clauses instead of dual-query patterns
- Use `$e isa! $t; $t sub {type}` pattern to bind exact type for label()
- Fix `_Value` concept extraction using `.get()` instead of `.as_value()`
- Handle new dict format from TypeDB driver in aggregation/group_by results

### Unicode Identifier Validation
- Add Unicode XID_START/XID_CONTINUE validation for identifiers
- Update TypeQL grammar to support Unicode identifiers

### Bug Fixes
- Fix "Failed to initialize logging" warning by suppressing stderr fd 2 during driver creation
- Fix hardcoded port 1729 in test files (now uses configurable TEST_DB_ADDRESS)
- Fix pyright errors for `__dict__` item assignment

### CI/Infrastructure
- Update TypeDB version to 3.8.0-rc0 in docker-compose.yml and CI workflow
- Add `expressions` test group to CI matrix

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: CaliLuke

.github/workflows/ci.yml

@@ -105,12 +105,12 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        test-group: [crud, queries, schema]
+        test-group: [crud, queries, schema, expressions]
 
     # Start TypeDB as a service container (runs first, before steps)
     services:
       typedb:
-        image: typedb/typedb:3.7.0-rc0
+        image: typedb/typedb:3.8.0-rc0
         ports:
           - 1729:1729
 

.gitignore

@@ -21,3 +21,6 @@ packages/typescript/dist/
 
 # Temporary
 tmp/
+
+# Reference repos
+typeql-ref/

README.md

@@ -234,7 +234,7 @@ generate_models("schema.tql", "./myapp/models/")
 
 This generates a complete Python package:
 
-```
+```text
 myapp/models/
 ├── __init__.py      # Package exports, SCHEMA_VERSION, schema_text()
 ├── attributes.py    # Attribute class definitions
@@ -245,6 +245,7 @@ myapp/models/
 ```
 
 The generator supports:
+
 - Entity/relation/attribute inheritance (`sub` keyword)
 - `@key`, `@unique`, `@card` constraints (including on `plays` and `relates`)
 - `@regex` and `@values` constraints
@@ -265,6 +266,7 @@ See [docs/api/generator.md](docs/api/generator.md) for full documentation.
 - **[docs/TYPEDB.md](docs/TYPEDB.md)** - TypeDB concepts, driver API, and TypeQL syntax
 - **[docs/ABSTRACT_TYPES.md](docs/ABSTRACT_TYPES.md)** - Abstract types and interface hierarchies in TypeDB
 - **[docs/INTERNALS.md](docs/INTERNALS.md)** - Internal type system and architecture
+- **[docs/SKILL.md](docs/SKILL.md)** - AI assistant skill for using type-bridge (for Claude, GPT, etc.)
 
 ### API Reference
 
@@ -375,10 +377,12 @@ uv run pytest -m "" -v                    # Run all tests
 ## What's New in v1.2.2 (2025-12-25)
 
 **Critical Bug Fixes:**
+
 - 🐛 **Fixed RelationManager IID correlation** (Issue #78) - `RelationManager.all()` now correctly assigns unique IIDs to role players instead of duplicating the same IIDs across all relations
 - 🐛 **Fixed stack overflow in `__in` lookups** (Issue #76) - Large `__in` queries (75+ values) now work reliably without causing TypeDB query planner crashes
 
 **Previous Releases:**
+
 - v1.2.0 - TypeDB 3.0 Structs Support & Batch Query Optimizations
 - v1.1.0 - Polymorphic Entity Instantiation
 - v1.0.0 - Initial stable release

docker-compose.yml

@@ -1,6 +1,6 @@
 services:
   typedb:
-    image: typedb/typedb:3.7.0
+    image: typedb/typedb:3.8.0-rc0
     container_name: typedb_test
     ports:
       - "${TYPEDB_PORT:-1730}:1729"