Add camera database build + brand normalization (gyroflow#742)

[ProspectOre]

Companion data/release PR for gyroflow/gyroflow#1154 and gyroflow/gyroflow#742.

This PR is structured for review in three commits:

1. Publish camera database release asset

   • Adds deterministic build_camera_database.py generation from the current lens profile JSON files.
   • Produces camera_database.json with brands, camera models, lenses, mounts, sensor class, crop factor, and source metadata.
   • Updates compression/release flow so camera_database.json can ship next to profiles.cbor.gz.

2. Normalize profile camera metadata

   • Applies canonical brand normalization across existing profile JSON metadata.
   • Keeps the generated database aligned with the existing profile corpus instead of only adding a parallel catalog.

3. Allow release workflow to publish artifacts

   • Ensures the release workflow has the permissions/artifact path needed to publish both assets.

Relationship to app PR

gyroflow/gyroflow#1154 reads this camera_database.json release asset and falls back to the bundled copy when no downloaded asset exists yet. The app PR can be reviewed commit-by-commit after this data shape is accepted.

Validation

Suggested checks:

./build_camera_database.py
./compress.rs

[ProspectOre]

Quick update: this is the data/release half of gyroflow/gyroflow#1154.

Suggested review path:

1. generated camera_database.json shape
2. brand normalization pass across existing profiles
3. release workflow publishing camera_database.json beside profiles.cbor.gz

Once this data shape is accepted, the app PR can be reviewed against it commit-by-commit.