H-3832: Upgrade to React 19, Next 15

[CiaranMn]

🌟 What is the purpose of this PR?

It upgrades to React 19 and Next 15.

Pre-Merge Checklist 🚀

🚢 Has this modified a publishable library?

This PR:

• does not modify any publishable blocks or libraries, or modifications do not need publishing

📜 Does this require a change to the docs?

The changes in this PR:

• are internal and do not require a docs change

🕸️ Does this require a change to the Turbo Graph?

The changes in this PR:

• do not affect the execution graph

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 21.72%. Comparing base (faf8281) to head (16cf15d).
Report is 3 commits behind head on main.

Files with missing lines	Patch %	Lines
.../@local/hash-isomorphic-utils/src/generate-uuid.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #5945   +/-   ##
=======================================
  Coverage   21.72%   21.72%           
=======================================
  Files         566      566           
  Lines       19157    19156    -1     
  Branches     2755     2755           
=======================================
  Hits         4162     4162           
+ Misses      14943    14942    -1     
  Partials       52       52           

Flag	Coverage Δ
apps.hash-ai-worker-ts	1.32% <ø> (ø)
apps.hash-api	1.16% <ø> (ø)
blockprotocol.type-system	46.42% <ø> (ø)
local.harpc-client	50.17% <ø> (ø)
local.hash-backend-utils	8.81% <ø> (ø)
local.hash-graph-sdk	58.62% <ø> (ø)
local.hash-isomorphic-utils	0.98% <0.00%> (+<0.01%)	⬆️
local.hash-subgraph	24.54% <ø> (ø)
rust.deer	6.66% <ø> (ø)
rust.error-stack	72.51% <ø> (ø)
rust.sarif	88.66% <ø> (ø)

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[github-actions]

Benchmark results

@rust/hash-graph-benches – Integrations

representative_read_entity

Function	Value	Mean	Flame graphs
entity_by_id	entity type ID: https://blockprotocol.org/@alice/types/entity-type/song/v/1	$$17.3 \mathrm{ms} \pm 204 \mathrm{μs}\left({\color{lightgreen}-23.389 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: https://blockprotocol.org/@alice/types/entity-type/page/v/2	$$16.1 \mathrm{ms} \pm 141 \mathrm{μs}\left({\color{gray}-4.142 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: https://blockprotocol.org/@alice/types/entity-type/building/v/1	$$16.6 \mathrm{ms} \pm 208 \mathrm{μs}\left({\color{red}5.70 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: https://blockprotocol.org/@alice/types/entity-type/playlist/v/1	$$16.2 \mathrm{ms} \pm 188 \mathrm{μs}\left({\color{red}5.84 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: https://blockprotocol.org/@alice/types/entity-type/person/v/1	$$16.1 \mathrm{ms} \pm 167 \mathrm{μs}\left({\color{gray}-4.083 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: https://blockprotocol.org/@alice/types/entity-type/uk-address/v/1	$$16.2 \mathrm{ms} \pm 161 \mathrm{μs}\left({\color{gray}3.42 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: https://blockprotocol.org/@alice/types/entity-type/book/v/1	$$15.8 \mathrm{ms} \pm 185 \mathrm{μs}\left({\color{lightgreen}-6.191 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: https://blockprotocol.org/@alice/types/entity-type/organization/v/1	$$15.9 \mathrm{ms} \pm 188 \mathrm{μs}\left({\color{lightgreen}-30.450 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	entity type ID: https://blockprotocol.org/@alice/types/entity-type/block/v/1	$$16.8 \mathrm{ms} \pm 203 \mathrm{μs}\left({\color{lightgreen}-7.265 \mathrm{\%}}\right) $$	Flame Graph

representative_read_multiple_entities

Function	Value	Mean	Flame graphs
entity_by_property	depths: DT=255, PT=255, ET=255, E=255	$$67.0 \mathrm{ms} \pm 376 \mathrm{μs}\left({\color{gray}0.133 \mathrm{\%}}\right) $$	Flame Graph
entity_by_property	depths: DT=0, PT=0, ET=0, E=0	$$40.2 \mathrm{ms} \pm 235 \mathrm{μs}\left({\color{gray}1.80 \mathrm{\%}}\right) $$	Flame Graph
entity_by_property	depths: DT=2, PT=2, ET=2, E=2	$$57.8 \mathrm{ms} \pm 267 \mathrm{μs}\left({\color{gray}1.53 \mathrm{\%}}\right) $$	Flame Graph
entity_by_property	depths: DT=0, PT=0, ET=0, E=2	$$44.5 \mathrm{ms} \pm 178 \mathrm{μs}\left({\color{gray}2.10 \mathrm{\%}}\right) $$	Flame Graph
entity_by_property	depths: DT=0, PT=0, ET=2, E=2	$$49.3 \mathrm{ms} \pm 221 \mathrm{μs}\left({\color{gray}0.838 \mathrm{\%}}\right) $$	Flame Graph
entity_by_property	depths: DT=0, PT=2, ET=2, E=2	$$54.2 \mathrm{ms} \pm 325 \mathrm{μs}\left({\color{gray}1.21 \mathrm{\%}}\right) $$	Flame Graph
link_by_source_by_property	depths: DT=255, PT=255, ET=255, E=255	$$103 \mathrm{ms} \pm 389 \mathrm{μs}\left({\color{gray}-0.698 \mathrm{\%}}\right) $$	Flame Graph
link_by_source_by_property	depths: DT=0, PT=0, ET=0, E=0	$$40.3 \mathrm{ms} \pm 314 \mathrm{μs}\left({\color{gray}3.49 \mathrm{\%}}\right) $$	Flame Graph
link_by_source_by_property	depths: DT=2, PT=2, ET=2, E=2	$$94.9 \mathrm{ms} \pm 354 \mathrm{μs}\left({\color{gray}-1.094 \mathrm{\%}}\right) $$	Flame Graph
link_by_source_by_property	depths: DT=0, PT=0, ET=0, E=2	$$78.2 \mathrm{ms} \pm 255 \mathrm{μs}\left({\color{gray}1.36 \mathrm{\%}}\right) $$	Flame Graph
link_by_source_by_property	depths: DT=0, PT=0, ET=2, E=2	$$88.1 \mathrm{ms} \pm 554 \mathrm{μs}\left({\color{gray}2.70 \mathrm{\%}}\right) $$	Flame Graph
link_by_source_by_property	depths: DT=0, PT=2, ET=2, E=2	$$91.1 \mathrm{ms} \pm 394 \mathrm{μs}\left({\color{gray}0.939 \mathrm{\%}}\right) $$	Flame Graph

representative_read_entity_type

Function	Value	Mean	Flame graphs
get_entity_type_by_id	Account ID: d4e16033-c281-4cde-aa35-9085bf2e7579	$$2.13 \mathrm{ms} \pm 6.15 \mathrm{μs}\left({\color{gray}0.447 \mathrm{\%}}\right) $$	Flame Graph

scaling_read_entity_complete_one_depth

Function	Value	Mean	Flame graphs
entity_by_id	50 entities	$$5.34 \mathrm{s} \pm 536 \mathrm{ms}\left({\color{gray}-1.016 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	5 entities	$$26.8 \mathrm{ms} \pm 140 \mathrm{μs}\left({\color{gray}-0.254 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	1 entities	$$20.8 \mathrm{ms} \pm 175 \mathrm{μs}\left({\color{gray}-0.489 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	10 entities	$$57.0 \mathrm{ms} \pm 188 \mathrm{μs}\left({\color{gray}0.906 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	25 entities	$$175 \mathrm{ms} \pm 697 \mathrm{μs}\left({\color{gray}-0.047 \mathrm{\%}}\right) $$	Flame Graph

scaling_read_entity_linkless

Function	Value	Mean	Flame graphs
entity_by_id	1 entities	$$1.94 \mathrm{ms} \pm 5.75 \mathrm{μs}\left({\color{gray}0.765 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	100 entities	$$2.14 \mathrm{ms} \pm 9.27 \mathrm{μs}\left({\color{gray}1.46 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	10 entities	$$1.95 \mathrm{ms} \pm 4.77 \mathrm{μs}\left({\color{gray}-0.582 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	1000 entities	$$2.88 \mathrm{ms} \pm 13.0 \mathrm{μs}\left({\color{gray}1.41 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	10000 entities	$$9.58 \mathrm{ms} \pm 160 \mathrm{μs}\left({\color{lightgreen}-6.409 \mathrm{\%}}\right) $$	Flame Graph

scaling_read_entity_complete_zero_depth

Function	Value	Mean	Flame graphs
entity_by_id	50 entities	$$4.04 \mathrm{ms} \pm 17.0 \mathrm{μs}\left({\color{gray}-2.791 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	5 entities	$$1.96 \mathrm{ms} \pm 11.1 \mathrm{μs}\left({\color{gray}0.957 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	1 entities	$$1.94 \mathrm{ms} \pm 8.83 \mathrm{μs}\left({\color{gray}-0.795 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	10 entities	$$2.06 \mathrm{ms} \pm 10.4 \mathrm{μs}\left({\color{gray}-1.445 \mathrm{\%}}\right) $$	Flame Graph
entity_by_id	25 entities	$$3.28 \mathrm{ms} \pm 13.3 \mathrm{μs}\left({\color{gray}0.752 \mathrm{\%}}\right) $$	Flame Graph