Add CameraX Skill snippets for Advanced Camera CUJs

[donovanfm]

These snippets will be used in conjunction with @madebymozart's migration snippets (#943) into a single CameraX skill (per the skill team's recommendation).

[snippet-bot]

Here is the summary of changes.

You are about to add 22 region tags.

• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:58, tag android_camerax_skill_immutability_1
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:83, tag android_camerax_skill_immutability_2
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:96, tag android_camerax_skill_xr_1
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:121, tag android_camerax_skill_low_light_1
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:133, tag android_camerax_skill_low_light_2
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:146, tag android_camerax_skill_low_light_3
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:154, tag android_camerax_skill_low_light_4
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:166, tag android_camerax_skill_low_light_5
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:175, tag android_camerax_skill_low_light_6
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:192, tag android_camerax_skill_external_1
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:200, tag android_camerax_skill_external_2
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:211, tag android_camerax_skill_external_3
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:226, tag android_camerax_skill_mlkit_spatial_1
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:237, tag android_camerax_skill_mlkit_spatial_2
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:245, tag android_camerax_skill_foldables_1
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:262, tag android_camerax_skill_foldables_2
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:276, tag android_camerax_skill_thermals_1
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:290, tag android_camerax_skill_thermals_2
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:320, tag android_camerax_skill_testing_1
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:334, tag android_camerax_skill_testing_2
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:346, tag android_camerax_skill_wear_os_1
• camerax/src/main/java/com/example/camerax/snippets/CameraSkillSnippets.kt:361, tag android_camerax_skill_wear_os_2

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[gemini-code-assist]

Code Review

This pull request introduces a new file, CameraSkillSnippets.kt, containing various code snippets demonstrating CameraX features such as immutability, low-light extensions, external cameras, foldables, thermals, and Wear OS integration. The review feedback highlights several compilation errors and safety issues in these snippets. Specifically, it points out conflicting variable declarations, a missing suspend modifier for an asynchronous call, unresolved constants that need class prefixes, missing Context references for system service retrieval, and a potential NullPointerException from an unchecked nullable bitmap.

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