[JavaScript] Align Buffer read/write API with java

[chaokunyang]

Feature Request

Align Buffer read/write API with Java naming style

Is your feature request related to a problem? Please describe

Current JavaScript buffer read/write methods do not use read* / write* prefixes. This makes the API less explicit and less consistent with Java and other xlang implementations.

Describe the solution you'd like

Refactor JavaScript buffer APIs to use explicit read* / write* method names.

Requirements:

• Rename write-side methods (for example int8, int16, uint32) to writeInt8, writeInt16, writeUint32, etc.
• Rename read-side methods using the same rule (read*).
• Perform a one-shot breaking rename: do not keep old method names, aliases, or deprecation shims.
• Update all internal call sites, tests, docs, and examples in the same change.
• Keep runtime behavior and performance unchanged.

Describe alternatives you've considered

• Keep old names as aliases during a transition period.

This was rejected. We want a clean one-time migration without compatibility aliases.

Additional context

This issue is specifically for API naming consistency and migration cleanup.

[miantalha45]

@chaokunyang Please this to me so that i can completely fix this and #3280 as well.

[chaokunyang]

@miantalha45 Assigned to you

[miantalha45]

@chaokunyang I have raised a PR to fix this issue. please have a look on it.