trying to rework database migrations

packs/core/runtimes/README.md

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+# Core Pack Runtime Metadata
+
+This directory contains runtime metadata YAML files for the core pack. Each file defines a runtime environment that can be used to execute actions and sensors.
+
+## File Structure
+
+Each runtime YAML file contains only the fields that are stored in the database:
+
+- `ref` - Unique runtime reference (format: pack.name)
+- `pack_ref` - Pack this runtime belongs to
+- `name` - Human-readable runtime name
+- `description` - Brief description of the runtime
+- `distributions` - Runtime verification and capability metadata (JSONB)
+- `installation` - Installation requirements and metadata (JSONB)
+
+## Available Runtimes
+
+- **python.yaml** - Python 3 runtime for actions and sensors
+- **nodejs.yaml** - Node.js runtime for JavaScript-based actions and sensors
+- **shell.yaml** - Shell (bash/sh) runtime - always available
+- **native.yaml** - Native compiled runtime (Rust, Go, C, etc.) - always available
+- **sensor_builtin.yaml** - Built-in sensor runtime for native Attune sensors
+
+## Loading
+
+Runtime metadata files are loaded by the pack loading system and inserted into the `runtime` table in the database.

packs/core/runtimes/native.yaml

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+ref: core.native
+pack_ref: core
+name: Native
+description: Native compiled runtime (Rust, Go, C, etc.) - always available
+
+distributions:
+  verification:
+    always_available: true
+    check_required: false
+  languages:
+    - rust
+    - go
+    - c
+    - c++
+
+installation:
+  build_required: false
+  system_native: true

packs/core/runtimes/nodejs.yaml

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+ref: core.nodejs
+pack_ref: core
+name: Node.js
+description: Node.js runtime for JavaScript-based actions and sensors
+
+distributions:
+  verification:
+    commands:
+      - binary: node
+        args:
+          - "--version"
+        exit_code: 0
+        pattern: "v\\d+\\.\\d+\\.\\d+"
+        priority: 1
+  min_version: "16.0.0"
+  recommended_version: "20.0.0"
+
+installation:
+  package_managers:
+    - npm
+    - yarn
+    - pnpm
+  module_support: true

packs/core/runtimes/python.yaml

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+ref: core.python
+pack_ref: core
+name: Python
+description: Python 3 runtime for actions and sensors with automatic environment management
+
+distributions:
+  verification:
+    commands:
+      - binary: python3
+        args:
+          - "--version"
+        exit_code: 0
+        pattern: "Python 3\\."
+        priority: 1
+      - binary: python
+        args:
+          - "--version"
+        exit_code: 0
+        pattern: "Python 3\\."
+        priority: 2
+  min_version: "3.8"
+  recommended_version: "3.11"
+
+installation:
+  package_managers:
+    - pip
+    - pipenv
+    - poetry
+  virtual_env_support: true

packs/core/runtimes/sensor_builtin.yaml

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+ref: core.sensor.builtin
+pack_ref: core
+name: Builtin
+description: Built-in sensor runtime for native Attune sensors (timers, webhooks, etc.)
+
+distributions:
+  verification:
+    always_available: true
+    check_required: false
+  type: builtin
+
+installation:
+  method: builtin
+  included_with_service: true

packs/core/runtimes/shell.yaml

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+ref: core.shell
+pack_ref: core
+name: Shell
+description: Shell (bash/sh) runtime for script execution - always available
+
+distributions:
+  verification:
+    commands:
+      - binary: sh
+        args:
+          - "--version"
+        exit_code: 0
+        optional: true
+        priority: 1
+      - binary: bash
+        args:
+          - "--version"
+        exit_code: 0
+        optional: true
+        priority: 2
+    always_available: true
+
+installation:
+  interpreters:
+    - sh
+    - bash
+    - dash
+  portable: true