Add Apache 2.0 license

[usmansalimLM]

Licenses this repo and @likeminds.community/chat-rn-core under Apache 2.0.

Changes

File	Change
LICENSE	new — canonical Apache 2.0 text, repo root
NOTICE	new — LikeMinds copyright attribution (required by Apache §4(d))
likeminds-chat-reactnative-integration/LICENSE	new — same text, so it ships inside the npm tarball
likeminds-chat-reactnative-integration/package.json	"license" changed from ISC to Apache-2.0
likeminds-chat-reactnative-integration/README.md	added a ## License section

Why two LICENSE files

The root LICENSE is what GitHub reads to show the repository's license badge. But npm packs
only the files inside likeminds-chat-reactnative-integration/, so the root file would not
reach npm consumers. Both are needed and both are byte-identical. This is standard practice
for a monorepo that publishes a subdirectory.

The five sample apps are intentionally untouched

ai-chatbot, cbc, community-chat, community-hybrid-chat, and networking-chat are all
marked "private": true and declare no license field. They are not published to npm and are
covered by the root LICENSE. Their package.json files are unchanged.

Notes for the reviewer

The LICENSE files are byte-identical to https://www.apache.org/licenses/LICENSE-2.0.txt
(SHA-256 cfc7749b96f63bd31c3c42b5c471bf756814053e847c10f3eb003417bc523d30). Please do not
reformat them or fill in the Copyright [yyyy] [name of copyright owner] placeholder in the
Appendix. That placeholder is part of the Appendix's instructions for applying the license,
not this repo's copyright notice. Editing the text causes GitHub and license scanners to
report the license as "Other" instead of "Apache-2.0". The repo's own copyright notice lives
in NOTICE.

The package.json change matters as much as the LICENSE file. npm consumers' license
scanners read the registry metadata, not this repo. It takes effect on the next published
version only; 1.10.0 and earlier keep ISC on npm permanently.

This is a relicense from ISC to Apache 2.0. Every contributor to this repo appears to be
LikeMinds staff, so this should be an internal decision, but please confirm before merging.

Context: this is one of three

@likeminds.community/chat-rn-core   -> likeminds-chat-reactnative       (this repo, public)
└── @likeminds.community/chat-rn    -> likeminds-chat-reactnative-data  (PRIVATE)
    └── @likeminds.community/chat-js -> likeminds-chat-js-data          (PRIVATE)

This repo is public, but both of its dependencies are private. Licensing this repo alone does
not make the React Native chat SDK usable as open source. Companion PRs:

• Add Apache 2.0 license likeminds-chat-reactnative-data#82
• Add Apache 2.0 license likeminds-chat-js-data#107

Those two repos must also be made public (a separate decision, not done by any of these PRs).

Flagged, not changed

This repo has no root README.md. One would normally carry the License section and explain
the monorepo layout. Not added here to avoid inventing project documentation.