Overture website update - #53

…ages

Resolves PR #911's conflict against origin/develop. 18 develop commits
absorbed; the single two-sided edit, the support link in
docs/02-Reference/00-submitting-metadata.md, keeps this branch's rewrite
over develop's stale docs.overture.bio path. Develop's own additions are
intact: the -ad allow-duplicates flag, the JetBrains README logo, and the
repo-wide formatter pass.

Resolves PR #504's conflict against origin/develop. 6 develop commits
absorbed across four conflicts: two support/reference-link rewrites kept
over develop's stale docs.overture.bio paths, README.md combined with
develop's Environment typo fix, and the Makefile Compose detection kept as
this branch's probe-with-fallback in place of develop's hardcoded
$(shell which docker) compose.

Develop's score -> score-client image rename, --remove-orphans, and
JetBrains logo are all intact. The branch's removal of --validate from the
upload options table still holds: #503 adds no CLI flag, and --validate is
declared only on DownloadCommand.

PR #257 was BEHIND by one commit (8195c9a, next@^12 vulnerability
upgrade). Rebased onto origin/main rather than taking GitHub's offered
merge commit, for consistency with the song and score rebases and to keep
history linear. No conflicts: that commit touches only package.json and
package-lock.json, while the branch touches docs/ and dev-services/.

Resolves PR #448's conflict against origin/main. 43 main commits
absorbed, one conflict: README.md, where main and this branch had
independently repointed the same stale under-development/lectern link.
Main used the older docs/core-software scheme, so this branch's
/develop/Lectern/overview wins, matching the site rename already applied
across song and score.

Main's prettier reformat of docs/03-dictionaryReference.md and its
displayName additions survive untouched. The docs/04-viewer/ pages were
verified against the rebased packages/ui: entry points,
DictionaryTableProps, CustomColumnConfig and MetaValueRenderer all match.

PR #297 targets M5-revised, the TypeScript rewrite, not master. 83
commits absorbed from a 2023 merge base.

The Java maestro-app config and the five old doc pages stay deleted; the
replacement pages cover their content and are more accurate, since
M5-revised's tech.md and README still list the kafka and repository
packages that 2cad87c consolidated away, and its setup.md points at a
nonexistent .env.schema.

Two corrections on top of the rebase: the README still carried master's
Java 11 and Maven prerequisites, which would have regressed the
TypeScript branch, and both setup guides documented a make help target
that does not exist.

Resolves PR #1089's conflicts. 11 commits absorbed, four conflicts.

MCP tool names: main's #1088 renamed them to snake_case and this branch
still had kebab-case, so main wins, verified against apps/mcp-server/src.
docs/mcp-server.md combined, keeping main's new query_arranger Prompts
block from #1087 alongside this branch's heading promotion.

The two .dev conflicts follow the branch's own drop-.dev-changes intent,
so .dev matches main exactly, except tech-debt.md where both entries are
kept: they are additive, and this branch's OpenSearch entry explains why
its Makefile change removes the start-os target.

Closes the unclosed code fence in docs/03-dictionaryReference.md that
trapped the ## Field Restrictions heading inside a code block. Docusaurus
was failing the site build on two broken anchors pointing at it, one from
the Lectern page itself and one from
website/docs/use-docs/administration/01-building-dictionaries.mdx.

Brings in the squashed Overture docs V2 update (#48). Submodule
pointers resolved to main's squash-merge commits, which already
contain this branch's per-submodule docs work. Kept this branch's
website-legacy entry in AGENTS.md.