[fix](doc) typo, anchor, and example-output corrections across docs

[boluor]

Summary

Small mechanical fixes — typos, broken anchors, and one example output that didn't match its surrounding values.

Where	What was wrong	Fix
admin-manual/system-tables/overview.md	frontmatter \"language\": \"zh-CN\" on the English file	switch to \"en\"
data-operate/import/import-way/mysql-load-manual.md, data-operate/import/data-source/local-file.md	result line Query OK, 6 row affected	pluralize to 6 rows affected
data-operate/transaction.md	SELECT * result row showed a truncated name Alexande	restore Alexander
data-operate/update/update-of-aggregate-model.md	two links to partial-column-update.md#聚合模型的列更新 — a Chinese anchor that has no English equivalent	repoint to the actual heading slug #column-update-on-the-aggregate-key-model
data-operate/update/update-of-unique-model.md	link anchor #column-update-for-the-unique-model does not exist	the heading is ## Column Update on the Unique Key Model, so use #column-update-on-the-unique-key-model
install/deploy-on-kubernetes/separating-storage-compute/config-cg.md, config-ms.md	four references to install-doris-cluster.md#3-配置-dorisdisaggregatedcluster-资源 (Chinese anchor on the English file)	the equivalent English subheading is ### 2. Modify Key Configurations under Step 3, so repoint to #2-modify-key-configurations
install/deploy-on-kubernetes/separating-storage-compute/config-cluster.md	link to config-fe#自定义启动配置 (Chinese anchor in a cross-file English link)	the heading ## Custom startup configuration slugs to #custom-startup-configuration (the same anchor that config-fe.md itself uses correctly elsewhere)
sql-manual/basic-element/literal/numeric-literal.md	integer-range table had every exponent doubled (TINYINT: -2^8 to 2^8 - 1, etc.)	signed integer ranges are [-2^(n-1), 2^(n-1) - 1], so the correct exponents are 2^7, 2^15, 2^31, 2^63, 2^127
query-acceleration/tuning/tuning-execution/parallelism-tuning.md	ProbeRows printed 1.4662330332B (1462330332) — the readable mantissa had a duplicate 6	the raw value 1462330332 corresponds to 1.462330332B, which matches the RowsProduced row immediately below
sql-manual/basic-element/sql-data-types/conversion/datetime-conversion.md	lower bound shown with 7 fractional digits (0000-01-01 00:00:00.0000000); DATETIME max precision is 6 (matches the upper bound 23:59:59.999999)	trim one zero
sql-manual/sql-functions/scalar-functions/array-functions/array-count.md	<version since=\"2.0.0\"> was never closed	add </version> to match the array-avg.md convention

Applied across docs/, versioned_docs/version-{2.1,3.x,4.x}/, and i18n/zh-CN/ where the affected content exists.

Test plan

• Spot-check each edit's diff.
• Verify replacement anchors exist as headings in the target files (partial-column-update.md, install-doris-cluster.md, config-fe.md).
• CI build (docusaurus + sidebar checks).