CI: build cross-platform binaries + tagged release

.gitea/workflows/release.yml builds the PySide6 GUI with PyInstaller on each
self-hosted runner and, on a v* tag, publishes a Gitea Release with every
platform binary attached:
- windows-latest  -> OBDash-windows.exe   (onefile, --windowed)
- self-hosted-mac -> OBDash-macos.zip     (.app bundle, ditto-zipped)
- docker (linux)  -> OBDash-linux-x86_64  (onefile + patchelf/GL libs)
- arm64 (Pi)      -> OBDash-linux-aarch64
Uses softprops/action-gh-release with the auto GITEA_TOKEN; manual dispatch
build-only (no release).

profiles/ is bundled via --add-data; obdcore.profile.profiles_dir() now
resolves sys._MEIPASS when frozen so the binary finds its vehicle profiles.

Validated locally on Linux: PyInstaller onefile builds (88MB), launches
offscreen, and loads bundled profiles (6 found). Build artifacts gitignored.
Added .claude/gitea-ship.json.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_016yT89n4zR4qbrySoSiEyZs

obdcore/profile.py

@@ -19,6 +19,7 @@ JSON schema (schema=1):
 import glob
 import json
 import os
+import sys
 from dataclasses import dataclass, field
 
 from .formula import compile_formula
@@ -42,6 +43,11 @@ class Profile:
 
 
 def profiles_dir():
+    # In a PyInstaller bundle, profiles/ is added as data and unpacked under
+    # sys._MEIPASS; otherwise it's the repo's profiles/ next to obdcore/.
+    if getattr(sys, "frozen", False):
+        base = getattr(sys, "_MEIPASS", os.path.dirname(sys.executable))
+        return os.path.join(base, "profiles")
     return os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))),
                         "profiles")